module top_module (
	input clk,
	input [7:0] in,
	input reset,
	output reg done
);

	reg [1:0] state; // 2-bit state register
	localparam IDLE = 2'b00, BYTE1 = 2'b01, BYTE2 = 2'b10, BYTE3 = 2'b11;

	always @(posedge clk) begin
		if (reset) begin
			state <= IDLE;
			done <= 0;
		end else begin
			case (state)
				IDLE: begin
					if (in[3] == 1) begin
						state <= BYTE1;
						done <= 0;
					end
				end
				BYTE1: begin
					state <= BYTE2; // Move to the next state regardless of in[3]
				end
				BYTE2: begin
					state <= BYTE3; // Move to the next state regardless of in[3]
				end
				BYTE3: begin
					if (in[3] == 1) begin
						done <= 1; // Signal done
					end
					state <= IDLE; // Prepare for the next message
				end
			endcase
		end
	end

endmodule

module top_module (
    input clk,
    input [7:0] in,
    input reset,
    output reg done
);

    reg [1:0] state;
    localparam IDLE = 2'b00, RECEIVING = 2'b01, COMPLETE = 2'b10;

    always @(posedge clk) begin
        if (reset) begin
            state <= IDLE;
            done <= 0;
        end else begin
            case (state)
                IDLE: begin
                    done <= 0;
                    if (in[3] == 1) begin
                        state <= RECEIVING;
                    end
                end
                RECEIVING: begin
                    if (in[3] == 1) begin
                        state <= COMPLETE;
                    end
                end
                COMPLETE: begin
                    done <= 1;
                    state <= IDLE;
                end
            endcase
        end
    end

endmodule

module top_module (
    input clk,
    input [7:0] in,
    input reset,
    output reg done
);

    typedef enum logic [1:0] {
        IDLE,
        BYTE1,
        BYTE2,
        BYTE3
    } state_t;

    state_t current_state, next_state;
    integer byte_count;

    always_ff @(posedge clk) begin
        if (reset) begin
            current_state <= IDLE;
            done <= 0;
            byte_count <= 0;
        end else begin
            current_state <= next_state;
            if (current_state == BYTE3) begin
                done <= 1;
            end else begin
                done <= 0;
            end
        end
    end

    always_comb begin
        next_state = current_state;
        case (current_state)
            IDLE: begin
                if (in[3] == 1) begin
                    byte_count = 1;
                    next_state = BYTE1;
                end
            end
            BYTE1: begin
                byte_count = 2;
                next_state = BYTE2;
            end
            BYTE2: begin
                byte_count = 3;
                next_state = BYTE3;
            end
            BYTE3: begin
                byte_count = 0; // Reset for the next message
                next_state = IDLE;
            end
            default: next_state = IDLE;
        endcase
    end

endmodule

module top_module (
	input clk,
	input [7:0] in,
	input reset,
	output reg done
);

	reg [1:0] state;
	localparam IDLE = 2'b00, WAIT_FOR_BYTE1 = 2'b01, WAIT_FOR_BYTE2 = 2'b10, WAIT_FOR_BYTE3 = 2'b11;

	always @(posedge clk) begin
		if (reset) begin
			state <= IDLE;
			done <= 0;
		end else begin
			case (state)
				IDLE: begin
					if (in[3] == 1) begin
						state <= WAIT_FOR_BYTE1;
					end
				end
				WAIT_FOR_BYTE1: begin
					state <= WAIT_FOR_BYTE2;
				end
				WAIT_FOR_BYTE2: begin
					state <= WAIT_FOR_BYTE3;
				end
				WAIT_FOR_BYTE3: begin
					done <= 1;
					state <= IDLE;
				end
			endcase
		end
	end

	always @(negedge clk) begin
		if (state == WAIT_FOR_BYTE3) begin
			done <= 0; // Reset done signal for the next message
		end
	end

endmodule

module top_module (
	input clk,
	input [7:0] in,
	input reset,
	output reg done
);

	reg [1:0] state, next_state;
	localparam IDLE = 2'b00, WAIT_FOR_START = 2'b01, RECEIVE_1 = 2'b10, RECEIVE_2 = 2'b11;

	always @(posedge clk) begin
		if (reset) begin
			state <= IDLE;
			done <= 0;
		end else begin
			state <= next_state;
		end
	end

	always @(*) begin
		case (state)
			IDLE: begin
				done = 0;
				if (in[3] == 1) begin
					next_state = RECEIVE_1;
				} else begin
					next_state = IDLE;
				end
			end
			RECEIVE_1: begin
				done = 0;
				next_state = RECEIVE_2;
			end
			RECEIVE_2: begin
				done = 0;
				next_state = IDLE; // After receiving two bytes, go back to IDLE
			end
			default: begin
				done = 0;
				next_state = IDLE;
			end
		endcase
	end

	always @(posedge clk) begin
		if (state == RECEIVE_2 && in[3] == 1) begin
			done <= 1; // Signal done after receiving the third byte
		end
	end

endmodule

module top_module (
    input clk,
    input [7:0] in,
    input reset,
    output reg done
);

    typedef enum logic [1:0] {
        IDLE = 2'b00,
        RECEIVE = 2'b01,
        WAIT_FOR_DONE = 2'b10
    } state_t;

    state_t state, next_state;
    reg [1:0] byte_count;

    always_ff @(posedge clk or posedge reset) begin
        if (reset) begin
            state <= IDLE;
            byte_count <= 2'b00;
            done <= 1'b0;
        end else begin
            state <= next_state;
        end
    end

    always_comb begin
        next_state = state;
        done = 1'b0;

        case (state)
            IDLE: begin
                if (in[3] == 1'b1) begin
                    next_state = RECEIVE;
                    byte_count = 2'b01;
                end
            end

            RECEIVE: begin
                if (byte_count < 2'b10) begin
                    byte_count = byte_count + 1;
                end else begin
                    next_state = WAIT_FOR_DONE;
                end
            end

            WAIT_FOR_DONE: begin
                done = 1'b1;
                if (in[3] == 1'b1) begin
                    next_state = RECEIVE;
                    byte_count = 2'b01;
                end else begin
                    next_state = IDLE;
                end
            end
        endcase
    end
endmodule

module top_module (
    input clk,
    input [7:0] in,
    input reset,
    output reg done
);
    reg [1:0] state;
    localparam IDLE = 2'b00, FIRST_BYTE = 2'b01, SECOND_BYTE = 2'b10, LAST_BYTE = 2'b11;

    always @(posedge clk) begin
        if (reset) begin
            state <= IDLE;
            done <= 0;
        end else begin
            case (state)
                IDLE: begin
                    done <= 0;
                    if (in[3] == 1) begin
                        state <= FIRST_BYTE;
                    end
                end
                FIRST_BYTE: begin
                    if (in[3] == 1) begin
                        state <= SECOND_BYTE;
                    end
                end
                SECOND_BYTE: begin
                    if (in[3] == 1) begin
                        state <= LAST_BYTE;
                    end
                end
                LAST_BYTE: begin
                    done <= 1;
                    state <= IDLE;
                end
            endcase
        end
    end
endmodule

module top_module (
    input clk,
    input [7:0] in,
    input reset,
    output reg done
);
    reg [1:0] state;
    parameter IDLE = 2'b00, BYTE1 = 2'b01, BYTE2 = 2'b10, BYTE3 = 2'b11;

    always @(posedge clk) begin
        if (reset) begin
            state <= IDLE;
            done <= 0;
        end else begin
            case (state)
                IDLE: begin
                    if (in[3] == 1'b1) begin
                        state <= BYTE1;
                        done <= 0;
                    end
                end
                BYTE1: begin
                    state <= BYTE2;
                end
                BYTE2: begin
                    state <= BYTE3;
                end
                BYTE3: begin
                    done <= 1'b1;
                    state <= IDLE;
                end
            endcase
        end
    end
endmodule

module top_module (
	input clk,
	input [7:0] in,
	input reset,
	output reg done
);

	reg [1:0] byte_count;

	always @(posedge clk) begin
		if (reset) begin
			done <= 0;
			byte_count <= 0;
		end else begin
			if (byte_count == 2'b11) begin
				done <= 1;
				byte_count <= 0; // reset for the next message
			end else if (in[3] == 1) begin
				if (byte_count == 0) begin
					byte_count <= 1; // first byte received
					done <= 0;
				end else begin
					byte_count <= byte_count + 1; // increment byte count
					done <= 0;
				end
			end else begin
				done <= 0; // no message received yet
			end
		end
	end

endmodule

module top_module (
	input clk,
	input [7:0] in,
	input reset,
	output reg done
);

	reg [1:0] state, next_state;

	parameter IDLE = 2'b00, FIRST_BYTE = 2'b01, SECOND_BYTE = 2'b10, THIRD_BYTE = 2'b11;

	always @(posedge clk) begin
		if (reset) begin
			state <= IDLE;
			done <= 0;
		end else begin
			state <= next_state;
		end
	end

	always @(*) begin
		done = 0;
		case (state)
			IDLE: begin
				if (in[3] == 1) begin
					next_state = FIRST_BYTE;
				end else begin
					next_state = IDLE;
				end
			end
			FIRST_BYTE: begin
				next_state = SECOND_BYTE;
			end
			SECOND_BYTE: begin
				next_state = THIRD_BYTE;
			end
			THIRD_BYTE: begin
				done = 1;
				next_state = IDLE;
			end
			default: next_state = IDLE;
		endcase
	end

endmodule

module top_module (
	input clk,
	input [7:0] in,
	input reset,
	output reg done
);

	reg [1:0] state;
	localparam IDLE = 2'b00, BYTE1 = 2'b01, BYTE2 = 2'b10, BYTE3 = 2'b11;

	always @(posedge clk) begin
		if (reset) begin
			state <= IDLE;
			done <= 0;
		end else begin
			case (state)
				IDLE: begin
					done <= 0;
					if (in[3] == 1) begin
						state <= BYTE1;
					end
				end
				BYTE1: begin
					if (in[3] == 1) begin
						state <= BYTE2;
					end else begin
						state <= IDLE;
					end
				end
				BYTE2: begin
					state <= BYTE3;
				end
				BYTE3: begin
					done <= 1;
					state <= IDLE;
				end
			endcase
		end
	end

endmodule

module top_module (
    input clk,
    input [7:0] in,
    input reset,
    output reg done
);

    typedef enum logic [1:0] {
        IDLE,
        FIRST_BYTE,
        SECOND_BYTE,
        THIRD_BYTE
    } state_t;

    state_t state, next_state;
    reg [2:0] byte_count;

    always_ff @(posedge clk) begin
        if (reset) begin
            state <= IDLE;
            done <= 0;
            byte_count <= 0;
        end else begin
            state <= next_state;
        end
    end

    always_ff @(posedge clk) begin
        if (reset) begin
            done <= 0;
        end else if (state == THIRD_BYTE) begin
            done <= 1;
        end else begin
            done <= 0;
        end
    end

    always_comb begin
        case (state)
            IDLE: begin
                if (in[3] == 1) begin
                    next_state = FIRST_BYTE;
                    byte_count = 1;
                end else begin
                    next_state = IDLE;
                end
            end
            FIRST_BYTE: begin
                if (byte_count < 3) begin
                    next_state = SECOND_BYTE;
                    byte_count = byte_count + 1;
                end else begin
                    next_state = FIRST_BYTE;
                end
            end
            SECOND_BYTE: begin
                if (byte_count < 3) begin
                    next_state = THIRD_BYTE;
                    byte_count = byte_count + 1;
                end else begin
                    next_state = SECOND_BYTE;
                end
            end
            THIRD_BYTE: begin
                next_state = IDLE;
                byte_count = 0;
            end
            default: next_state = IDLE;
        endcase
    end

endmodule

module top_module (
    input clk,
    input [7:0] in,
    input reset,
    output reg done
);
    typedef enum logic [1:0] {
        IDLE,
        BYTE1,
        BYTE2,
        BYTE3
    } state_t;

    state_t current_state, next_state;
    reg [2:0] byte_count;

    always_ff @(posedge clk) begin
        if (reset) begin
            current_state <= IDLE;
            byte_count <= 0;
            done <= 0;
        end else begin
            current_state <= next_state;
            if (next_state == BYTE3) begin
                done <= 1;
            end else begin
                done <= 0;
            end
        end
    end

    always_ff @(current_state or in) begin
        case (current_state)
            IDLE: begin
                if (in[3] == 1) begin
                    next_state = BYTE1;
                    byte_count = 1;
                end else begin
                    next_state = IDLE;
                end
            end

            BYTE1: begin
                if (byte_count < 3) begin
                    next_state = BYTE2;
                    byte_count = byte_count + 1;
                end else begin
                    next_state = IDLE;
                end
            end

            BYTE2: begin
                if (byte_count < 3) begin
                    next_state = BYTE3;
                    byte_count = byte_count + 1;
                end else begin
                    next_state = IDLE;
                end
            end

            BYTE3: begin
                next_state = IDLE;
                byte_count = 0;
            end

            default: next_state = IDLE;
        endcase
    end
endmodule

module top_module (
    input clk,
    input [7:0] in,
    input reset,
    output reg done
);
    typedef enum reg [1:0] {
        IDLE,
        BYTE1,
        BYTE2,
        BYTE3
    } state_t;

    state_t current_state, next_state;
    reg [1:0] byte_count;

    always @(posedge clk) begin
        if (reset) begin
            current_state <= IDLE;
            byte_count <= 0;
            done <= 0;
        end else begin
            current_state <= next_state;
            if (current_state == BYTE3) begin
                done <= 1;
            end else begin
                done <= 0;
            end
        end
    end

    always @(*) begin
        case (current_state)
            IDLE: begin
                if (in[3] == 1) begin
                    next_state = BYTE1;
                    byte_count = 1;
                end else begin
                    next_state = IDLE;
                end
            end

            BYTE1: begin
                if (byte_count == 2) begin
                    next_state = BYTE3;
                end else begin
                    next_state = BYTE2;
                    byte_count = byte_count + 1;
                end
            end

            BYTE2: begin
                if (byte_count == 2) begin
                    next_state = BYTE3;
                end else begin
                    next_state = BYTE3;
                    byte_count = byte_count + 1;
                end
            end

            BYTE3: begin
                next_state = IDLE;  // Go back to IDLE after receiving all 3 bytes
            end

            default: next_state = IDLE;
        endcase
    end
endmodule

module top_module (
    input clk,
    input [7:0] in,
    input reset,
    output reg done
);

    typedef enum logic [1:0] {
        IDLE = 2'b00,
        BYTE1 = 2'b01,
        BYTE2 = 2'b10,
        BYTE3 = 2'b11
    } state_t;

    state_t current_state, next_state;
    reg [1:0] byte_count;

    always_ff @(posedge clk or posedge reset) begin
        if (reset) begin
            current_state <= IDLE;
            done <= 0;
            byte_count <= 0;
        end else begin
            current_state <= next_state;
        end
    end

    always_ff @(posedge clk) begin
        if (current_state == BYTE1) begin
            byte_count <= 1;
        end else if (current_state == BYTE2) begin
            byte_count <= 2;
        end else if (current_state == BYTE3) begin
            byte_count <= 0;
        end
    end

    always_comb begin
        case (current_state)
            IDLE: begin
                if (in[3] == 1) begin
                    next_state = BYTE1;
                end else begin
                    next_state = IDLE;
                end
                done = 0;
            end

            BYTE1: begin
                next_state = BYTE2;
                done = 0;
            end

            BYTE2: begin
                next_state = BYTE3;
                done = 0;
            end

            BYTE3: begin
                next_state = IDLE;
                done = 1;
            end

            default: begin
                next_state = IDLE;
                done = 0;
            end
        endcase
    end

endmodule

module top_module (
    input clk,
    input [7:0] in,
    input reset,
    output reg done
);

    reg [1:0] state, next_state;

    localparam IDLE = 2'b00,
               BYTE1 = 2'b01,
               BYTE2 = 2'b10,
               BYTE3 = 2'b11;

    always @(posedge clk) begin
        if (reset) begin
            state <= IDLE;
            done <= 0;
        end else begin
            state <= next_state;
        end
    end

    always @(*) begin
        done = 0;
        case (state)
            IDLE: begin
                if (in[3] == 1) begin
                    next_state = BYTE1;
                end else begin
                    next_state = IDLE;
                end
            end
            BYTE1: begin
                next_state = BYTE2;
            end
            BYTE2: begin
                next_state = BYTE3;
            end
            BYTE3: begin
                done = 1;
                next_state = IDLE;
            end
            default: begin
                next_state = IDLE;
            end
        endcase
    end

endmodule

module top_module (
    input clk,
    input [7:0] in,
    input reset,
    output reg done
);

    typedef enum logic [1:0] {
        IDLE,
        BYTE1,
        BYTE2,
        BYTE3
    } state_t;

    state_t state, next_state;

    always_ff @(posedge clk) begin
        if (reset) begin
            state <= IDLE;
            done <= 0;
        end else begin
            state <= next_state;
        end
    end

    always_comb begin
        next_state = state;
        done = 0;

        case (state)
            IDLE: begin
                if (in[3] == 1) begin
                    next_state = BYTE1;
                end
            end

            BYTE1: begin
                next_state = BYTE2;
            end

            BYTE2: begin
                next_state = BYTE3;
            end

            BYTE3: begin
                done = 1;
                next_state = IDLE;
            end
        endcase
    end

endmodule

module top_module (
	input clk,
	input [7:0] in,
	input reset,
	output reg done
);

	reg [1:0] state;
	localparam IDLE = 2'b00, BYTE1 = 2'b01, BYTE2 = 2'b10, BYTE3 = 2'b11;

	always @(posedge clk) begin
		if (reset) begin
			state <= IDLE;
			done <= 0;
		end else begin
			case (state)
				IDLE: begin
					if (in[3] == 1) begin
						state <= BYTE1;
					end
					done <= 0;
				end
				BYTE1: begin
					state <= BYTE2;
					done <= 0;
				end
				BYTE2: begin
					state <= BYTE3;
					done <= 0;
				end
				BYTE3: begin
					done <= 1; // Signal that a message has been received
					state <= IDLE; // Go back to searching for the next message
				end
			endcase
		end
	end
endmodule

module top_module (
    input clk,
    input [7:0] in,
    input reset,
    output reg done
);
    reg [1:0] state; // State register
    reg [1:0] next_state; // Next state logic
    parameter IDLE = 2'b00, FIRST_BYTE = 2'b01, SECOND_BYTE = 2'b10, DONE = 2'b11;

    always @(posedge clk) begin
        if (reset) begin
            state <= IDLE;
            done <= 0;
        end else begin
            state <= next_state;
        end
    end

    always @(*) begin
        done = 0; // Default done signal
        case (state)
            IDLE: begin
                if (in[3] == 1) begin
                    next_state = FIRST_BYTE;
                end else begin
                    next_state = IDLE;
                end
            end
            FIRST_BYTE: begin
                next_state = SECOND_BYTE;
            end
            SECOND_BYTE: begin
                next_state = DONE;
            end
            DONE: begin
                done = 1; // Signal done
                next_state = IDLE; // Go back to IDLE after signaling done
            end
            default: next_state = IDLE; // Default case to avoid latches
        endcase
    end
endmodule

module top_module (
    input clk,
    input [7:0] in,
    input reset,
    output reg done
);

    typedef enum logic [1:0] {
        IDLE,
        BYTE1,
        BYTE2,
        BYTE3
    } state_t;

    state_t current_state, next_state;
    integer byte_count;

    always_ff @(posedge clk) begin
        if (reset) begin
            current_state <= IDLE;
            done <= 0;
            byte_count <= 0;
        end else begin
            current_state <= next_state;
            if (next_state == BYTE3) begin
                done <= 1;
            end else begin
                done <= 0;
            end
        end
    end

    always_comb begin
        next_state = current_state;
        case (current_state)
            IDLE: begin
                if (in[3] == 1) begin
                    next_state = BYTE1;
                    byte_count = 1;
                end
            end
            BYTE1: begin
                if (byte_count < 3) begin
                    next_state = BYTE2;
                    byte_count = 2;
                end else begin
                    next_state = IDLE;
                end
            end
            BYTE2: begin
                if (byte_count < 3) begin
                    next_state = BYTE3;
                    byte_count = 3;
                end else begin
                    next_state = IDLE;
                end
            end
            BYTE3: begin
                next_state = IDLE;
                byte_count = 0;
            end
        endcase
    end

endmodule


module top_module (
    input a,
    input b,
    input sel,
    output out
);
    assign out = sel ? b : a;
endmodule

module top_module (
	input a,
	input b,
	input sel,
	output out
);
	assign out = (sel == 0) ? a : b;
endmodule

module top_module (
    input a,
    input b,
    input sel,
    output out
);
    assign out = (sel) ? b : a;
endmodule


module top_module (
    input [3:0] in,
    output out_and,
    output out_or,
    output out_xor
);

assign out_and = in[0] & in[1] & in[2] & in[3];
assign out_or = in[0] | in[1] | in[2] | in[3];
assign out_xor = in[0] ^ in[1] ^ in[2] ^ in[3];

endmodule


module top_module (
	input clk,
	input reset,
	input x,
	output reg z
);

    reg [2:0] state, next_state;

    // State encoding
    localparam S000 = 3'b000, S001 = 3'b001, S010 = 3'b010, S011 = 3'b011, S100 = 3'b100;

    // Next state logic
    always @(*) begin
        case(state)
            S000: next_state = (x == 0) ? S000 : S001;
            S001: next_state = (x == 0) ? S001 : S100;
            S010: next_state = (x == 0) ? S010 : S001;
            S011: next_state = (x == 0) ? S001 : S010;
            S100: next_state = (x == 0) ? S011 : S100;
            default: next_state = S000;
        endcase
    end

    // Output logic
    always @(*) begin
        case(state)
            S011: z = 1;
            S000: z = 0;
            S001: z = 0;
            S010: z = 0;
            S100: z = 1;
            default: z = 0;
        endcase
    end

    // State register
    always @(posedge clk) begin
        if (reset)
            state <= S000;
        else
            state <= next_state;
    end

endmodule

module top_module (
	input clk,
	input reset,
	input x,
	output reg z
);
	reg [2:0] state, next_state;

	always @(posedge clk) begin
		if (reset) begin
			state <= 3'b000;
		end else begin
			state <= next_state;
		end
	end

	always @(*) begin
		case (state)
			3'b000: begin
				if (x) begin
					next_state = 3'b001;
					z = 1'b0;
				end else begin
					next_state = 3'b000;
					z = 1'b0;
				end
			end
			3'b001: begin
				if (x) begin
					next_state = 3'b100;
					z = 1'b0;
				end else begin
					next_state = 3'b001;
					z = 1'b0;
				end
			end
			3'b010: begin
				if (x) begin
					next_state = 3'b001;
					z = 1'b0;
				end else begin
					next_state = 3'b010;
					z = 1'b0;
				end
			end
			3'b011: begin
				if (x) begin
					next_state = 3'b010;
					z = 1'b1;
				end else begin
					next_state = 3'b001;
					z = 1'b1;
				end
			end
			3'b100: begin
				if (x) begin
					next_state = 3'b100;
					z = 1'b1;
				end else begin
					next_state = 3'b011;
					z = 1'b1;
				end
			end
			default: begin
				next_state = 3'b000;
				z = 1'b0;
			end
		endcase
	end
endmodule

module top_module (
	input clk,
	input reset,
	input x,
	output reg z
);
	reg [2:0] y; // Current state
-reg [2:0] next_state; // Next state

	// State transition
	always @(*) begin
		case (y)
			3'b000: next_state = (x) ? 3'b001 : 3'b000;
			3'b001: next_state = (x) ? 3'b100 : 3'b001;
			3'b010: next_state = (x) ? 3'b001 : 3'b010;
			3'b011: next_state = (x) ? 3'b010 : 3'b001;
			3'b100: next_state = (x) ? 3'b100 : 3'b011;
			default: next_state = 3'b000; // Default state
		endcase
	end

	// Output logic
	always @(*) begin
		case (y)
			3'b011: z = 1;
			default: z = 0;
		endcase
	end

	// State register
	always @(posedge clk) begin
		if (reset) begin
			y <= 3'b000; // Reset to state 000
		end else begin
			y <= next_state; // Update state
		end
	end
endmodule

module top_module (
	input clk,
	input reset,
	input x,
	output reg z
);

	reg [2:0] state, next_state;

	// State encoding
	parameter S0 = 3'b000;
	parameter S1 = 3'b001;
	parameter S2 = 3'b010;
	parameter S3 = 3'b011;
	parameter S4 = 3'b100;

	// State transition
	always @(*) begin
		case (state)
			S0: next_state = (x == 0) ? S0 : S1;
			S1: next_state = (x == 0) ? S1 : S4;
			S2: next_state = (x == 0) ? S2 : S1;
			S3: next_state = (x == 0) ? S1 : S2;
			S4: next_state = (x == 0) ? S3 : S4;
			default: next_state = S0;
		endcase
	end

	// Output logic
	always @(*) begin
		case (state)
			S0: z = 0;
			S1: z = 0;
			S2: z = 0;
			S3: z = 1;
			S4: z = 1;
			default: z = 0;
		endcase
	end

	// State register
	always @(posedge clk) begin
		if (reset) begin
			state <= S0;
		end else begin
			state <= next_state;
		end
	end

endmodule

module top_module (
	input clk,
	input reset,
	input x,
	output reg z
);

	reg [2:0] state, next_state;

	// State encoding
	parameter S0 = 3'b000;
	parameter S1 = 3'b001;
	parameter S2 = 3'b010;
	parameter S3 = 3'b011;
	parameter S4 = 3'b100;

	// State transition
	always @(*) begin
		case (state)
			S0: next_state = (x == 0) ? S0 : S1;
			S1: next_state = (x == 0) ? S1 : S4;
			S2: next_state = (x == 0) ? S2 : S1;
			S3: next_state = (x == 0) ? S1 : S2;
			S4: next_state = (x == 0) ? S3 : S4;
			default: next_state = S0;
		endcase
	end

	// Output logic
	always @(*) begin
		case (state)
			S0: z = 0;
			S1: z = 0;
			S2: z = 0;
			S3: z = 1;
			S4: z = 1;
			default: z = 0;
		endcase
	end

	// FF for state update
	always @(posedge clk) begin
		if (reset) begin
			state <= S0;
		end else begin
			state <= next_state;
		end
	end

endmodule

module top_module (
    input clk,
    input reset,
    input x,
    output reg z
);
    reg [2:0] state, next_state;

    always @(posedge clk) begin
        if (reset) begin
            state <= 3'b000;
        end else begin
            state <= next_state;
        end
    end

    always @(*) begin
        case (state)
            3'b000: begin
                next_state = (x) ? 3'b001 : 3'b000;
                z = 0;
            end
            3'b001: begin
                next_state = (x) ? 3'b100 : 3'b001;
                z = 0;
            end
            3'b010: begin
                next_state = (x) ? 3'b001 : 3'b010;
                z = 0;
            end
            3'b011: begin
                next_state = (x) ? 3'b010 : 3'b001;
                z = 1;
            end
            3'b100: begin
                next_state = (x) ? 3'b100 : 3'b011;
                z = 1;
            end
            default: begin
                next_state = 3'b000;
                z = 0;
            end
        endcase
    end
endmodule

module top_module (
	input clk,
	input reset,
	input x,
	output reg z
);
	reg [2:0] state, next_state;

	always @(posedge clk) begin
		if (reset) begin
			state <= 3'b000;
		end else begin
			state <= next_state;
		end
	end

	always @(*) begin
		case (state)
			3'b000: begin
				next_state = (x == 0) ? 3'b000 : 3'b001;
				z = 0;
			end
			3'b001: begin
				next_state = (x == 0) ? 3'b001 : 3'b100;
				z = 0;
			end
			3'b010: begin
				next_state = (x == 0) ? 3'b010 : 3'b001;
				z = 0;
			end
			3'b011: begin
				next_state = (x == 0) ? 3'b001 : 3'b010;
				z = 1;
			end
			3'b100: begin
				next_state = (x == 0) ? 3'b011 : 3'b100;
				z = 1;
			end
			default: begin
				next_state = 3'b000;
				z = 0;
			end
		endcase
	end
endmodule

module top_module (
	input clk,
	input reset,
	input x,
	output reg z
);
	reg [2:0] state, next_state;

	// State encoding
	parameter S000 = 3'b000;
	parameter S001 = 3'b001;
	parameter S010 = 3'b010;
	parameter S011 = 3'b011;
	parameter S100 = 3'b100;

	// State transition
	always @ (posedge clk) begin
		if (reset) begin
			state <= S000;
		end else begin
			state <= next_state;
		end
	end

	// Next state logic
	always @ (*) begin
		case (state)
			S000: next_state = (x == 0) ? S000 : S001;
			S001: next_state = (x == 0) ? S001 : S100;
			S010: next_state = (x == 0) ? S010 : S001;
			S011: next_state = (x == 0) ? S001 : S010;
			S100: next_state = (x == 0) ? S011 : S100;
			default: next_state = S000; // Default case to avoid latches
		endcase
	end

	// Output logic
	always @ (*) begin
		if (state == S011 || state == S100)
			z = 1;
		else
			z = 0;
	end
endmodule

module top_module (
	input clk,
	input reset,
	input x,
	output reg z
);

	reg [2:0] state, next_state;

	// State encoding
	parameter S0 = 3'b000,
			  S1 = 3'b001,
			  S2 = 3'b010,
			  S3 = 3'b011,
			  S4 = 3'b100;

	// State transition
	always @(*) begin
		case (state)
			S0: next_state = (x ? S1 : S0);
			S1: next_state = (x ? S4 : S1);
			S2: next_state = (x ? S1 : S2);
			S3: next_state = (x ? S2 : S1);
			S4: next_state = (x ? S4 : S3);
			default: next_state = S0;
		endcase
	end

	// Output logic
	always @(*) begin
		case (state)
			S0, S1, S2: z = 0;
			S3, S4: z = 1;
			default: z = 0;
		endcase
	end

	// Sequential logic
	always @(posedge clk) begin
		if (reset) begin
			state <= S0;
		end else begin
			state <= next_state;
		end
	end

endmodule

module top_module (
	input clk,
	input reset,
	input x,
	output reg z
);
	reg [2:0] state, next_state;

	always @(posedge clk) begin
		if (reset)
			state <= 3'b000;
		else
			state <= next_state;
	end

	always @(*) begin
		case (state)
			3'b000: next_state = (x == 0) ? 3'b000 : 3'b001;
			3'b001: next_state = (x == 0) ? 3'b001 : 3'b100;
			3'b010: next_state = (x == 0) ? 3'b010 : 3'b001;
			3'b011: next_state = (x == 0) ? 3'b001 : 3'b010;
			3'b100: next_state = (x == 0) ? 3'b011 : 3'b100;
			default: next_state = 3'b000;
		endcase
	end

	always @(posedge clk) begin
		if (reset)
			z <= 0;
		else begin
			case (state)
				3'b011: z <= 1;
				3'b100: z <= 1;
				default: z <= 0;
			endcase
		end
	end
endmodule

module top_module (
	input clk,
	input reset,
	input x,
	output reg z
);
    reg [2:0] y;

    always @(posedge clk) begin
        if (reset) begin
            y <= 3'b000;
            z <= 0;
        end else begin
            case (y)
                3'b000: y <= (x ? 3'b001 : 3'b000);
                3'b001: y <= (x ? 3'b100 : 3'b001);
                3'b010: y <= (x ? 3'b001 : 3'b010);
                3'b011: begin
                    y <= (x ? 3'b010 : 3'b001);
                    z <= 1;
                end
                3'b100: begin
                    y <= (x ? 3'b100 : 3'b011);
                    z <= 1;
                end
                default: y <= 3'b000;
            endcase
        end
    end

    always @(y) begin
        if (y == 3'b011 || y == 3'b100)
            z <= 1;
        else
            z <= 0;
    end
endmodule

module top_module (
	input clk,
	input reset,
	input x,
	output reg z
);
	reg [2:0] state, next_state;

	// State encoding
	localparam S0 = 3'b000;
	localparam S1 = 3'b001;
	localparam S2 = 3'b010;
	localparam S3 = 3'b011;
	localparam S4 = 3'b100;

	// Output logic
	always @(*) begin
		case (state)
			S0: begin
				next_state = (x ? S1 : S0);
				z = 0;
			end
			S1: begin
				next_state = (x ? S4 : S1);
				z = 0;
			end
			S2: begin
				next_state = (x ? S1 : S2);
				z = 0;
			end
			S3: begin
				next_state = (x ? S2 : S1);
				z = 1;
			end
			S4: begin
				next_state = (x ? S4 : S3);
				z = 1;
			end
			default: begin
				next_state = S0;
				z = 0;
			end
		endcase
	end

	// State transition
	always @(posedge clk) begin
		if (reset) begin
			state <= S0;
		end else begin
			state <= next_state;
		end
	end
endmodule

module top_module (
	input clk,
	input reset,
	input x,
	output reg z
);
	reg [2:0] state, next_state;

	always @(posedge clk) begin
		if (reset)
			state <= 3'b000;
		else
			state <= next_state;
	end

	always @(*) begin
		case (state)
			3'b000: begin
				if (x)
					next_state = 3'b001;
				else
					next_state = 3'b000;
				z = 1'b0;
			end
			3'b001: begin
				if (x)
					next_state = 3'b100;
				else
					next_state = 3'b001;
				z = 1'b0;
			end
			3'b010: begin
				if (x)
					next_state = 3'b001;
				else
					next_state = 3'b010;
				z = 1'b0;
			end
			3'b011: begin
				if (x)
					next_state = 3'b010;
				else
					next_state = 3'b001;
				z = 1'b1;
			end
			3'b100: begin
				if (x)
					next_state = 3'b100;
				else
					next_state = 3'b011;
				z = 1'b1;
			end
			default: begin
				next_state = 3'b000;
				z = 1'b0;
			end
		endcase
	end
endmodule

module top_module (
	input clk,
	input reset,
	input x,
	output reg z
);

	reg [2:0] y; // Present state

	always @(posedge clk) begin
		if (reset) begin
			y <= 3'b000; // Reset state
		end else begin
			case (y)
				3'b000: y <= (x ? 3'b001 : 3'b000);
				3'b001: y <= (x ? 3'b100 : 3'b001);
				3'b010: y <= (x ? 3'b001 : 3'b010);
				3'b011: y <= (x ? 3'b010 : 3'b001);
				3'b100: y <= (x ? 3'b100 : 3'b011);
				default: y <= 3'b000; // Default case
			endcase
		end
	end

	always @(y) begin
		case (y)
			3'b000, 3'b001, 3'b010: z = 0;
			3'b011, 3'b100: z = 1;
			default: z = 0; // Default case for safe coding
		endcase
	end

endmodule

module top_module (
    input clk,
    input reset,
    input x,
    output reg z
);
    reg [2:0] state, next_state;

    always @(posedge clk) begin
        if (reset) begin
            state <= 3'b000;
        end else begin
            state <= next_state;
        end
    end

    always @(*) begin
        case (state)
            3'b000: begin
                next_state = (x == 0) ? 3'b000 : 3'b001;
                z = 1'b0;
            end
            3'b001: begin
                next_state = (x == 0) ? 3'b001 : 3'b100;
                z = 1'b0;
            end
            3'b010: begin
                next_state = (x == 0) ? 3'b010 : 3'b001;
                z = 1'b0;
            end
            3'b011: begin
                next_state = (x == 0) ? 3'b001 : 3'b010;
                z = 1'b1;
            end
            3'b100: begin
                next_state = (x == 0) ? 3'b011 : 3'b100;
                z = 1'b1;
            end
            default: begin
                next_state = 3'b000;
                z = 1'b0;
            end
        endcase
    end
endmodule

module top_module (
	input clk,
	input reset,
	input x,
	output reg z
);

 reg [2:0] state, next_state;

 always @(posedge clk or posedge reset) begin
    if (reset)
        state <= 3'b000;
    else
        state <= next_state;
 end

 always @(*) begin
    case (state)
        3'b000: begin
            next_state = (x == 1) ? 3'b001 : 3'b000;
            z = 1'b0;
        end
        3'b001: begin
            next_state = (x == 1) ? 3'b100 : 3'b001;
            z = 1'b0;
        end
        3'b010: begin
            next_state = (x == 1) ? 3'b001 : 3'b010;
            z = 1'b0;
        end
        3'b011: begin
            next_state = (x == 1) ? 3'b010 : 3'b001;
            z = 1'b1;
        end
        3'b100: begin
            next_state = (x == 1) ? 3'b100 : 3'b011;
            z = 1'b1;
        end
        default: begin
            next_state = 3'b000;
            z = 1'b0;
        end
    endcase
 end

endmodule

module top_module (
	input clk,
	input reset,
	input x,
	output reg z
);

	reg [2:0] y, next_y;

	always @(posedge clk) begin
		if (reset) begin
			y <= 3'b000;
		end else begin
			y <= next_y;
		end
	end

	always @(*) begin
		case (y)
			3'b000: begin
				next_y = (x == 1'b1) ? 3'b001 : 3'b000;
				z = 1'b0;
			end
			3'b001: begin
				next_y = (x == 1'b1) ? 3'b100 : 3'b001;
				z = 1'b0;
			end
			3'b010: begin
				next_y = (x == 1'b1) ? 3'b001 : 3'b010;
				z = 1'b0;
			end
			3'b011: begin
				next_y = (x == 1'b1) ? 3'b010 : 3'b001;
				z = 1'b1;
			end
			3'b100: begin
				next_y = (x == 1'b1) ? 3'b100 : 3'b011;
				z = 1'b1;
			end
			default: begin
				next_y = 3'b000;
				z = 1'b0;
			end
		endcase
	end
endmodule

module top_module (
    input clk,
    input reset,
    input x,
    output reg z
);
    reg [2:0] current_state, next_state;

    parameter S0 = 3'b000,
              S1 = 3'b001,
              S2 = 3'b010,
              S3 = 3'b011,
              S4 = 3'b100;

    always @(posedge clk) begin
        if (reset) begin
            current_state <= S0;
        end else begin
            current_state <= next_state;
        end
    end

    always @(*) begin
        case (current_state)
            S0: begin
                next_state = (x) ? S1 : S0;
                z = 0;
            end
            S1: begin
                next_state = (x) ? S4 : S1;
                z = 0;
            end
            S2: begin
                next_state = (x) ? S1 : S2;
                z = 0;
            end
            S3: begin
                next_state = (x) ? S2 : S1;
                z = 1;
            end
            S4: begin
                next_state = (x) ? S4 : S3;
                z = 1;
            end
            default: begin
                next_state = S0;
                z = 0;
            end
        endcase
    end
endmodule


module top_module (
    input clk,
    input resetn,
    input x,
    input y,
    output reg f,
    output reg g
);

    typedef enum reg [1:0] {STATE_A, STATE_B, STATE_C, STATE_D} state_type;
    state_type state, next_state;

    reg [1:0] x_count;  // Counter for x values
    reg y_flag;         // Flag to indicate if y=1 was seen

    always @(posedge clk or negedge resetn) begin
        if (!resetn) begin
            state <= STATE_A;
            f <= 0;
            g <= 0;
            x_count <= 0;
            y_flag <= 0;
        end else begin
            state <= next_state;
            if (next_state == STATE_B) begin
                f <= 1;  // Activate f for one cycle
            end else begin
                f <= 0;  // Deactivate f otherwise
            end

            if (next_state == STATE_C) begin
                if (y) begin
                    g <= 1;  // Maintain g = 1 if y = 1
                end else if (x_count == 2) begin
                    g <= 0;  // Set g = 0 if y != 1 within 2 cycles
                end
            end
        end
    end

    always @(*) begin
        case (state)
            STATE_A: begin
                if (!resetn) begin
                    next_state = STATE_A;
                end else begin
                    next_state = STATE_B;
                    x_count = 0;  // Reset x count
                end
            end
            STATE_B: begin
                next_state = STATE_C;  // Move to monitoring state
            end
            STATE_C: begin
                if (x) begin
                    x_count = x_count + 1;  // Count 1s from x
                end
                if (x_count == 3) begin
                    next_state = STATE_D;  // Transition if 1, 0, 1 is detected
                end else begin
                    next_state = STATE_C;  // Stay in state C
                end
            end
            STATE_D: begin
                if (y) begin
                    y_flag = 1;
                    g = 1;  // Keep g = 1 if y detected
                end else if (!y_flag) begin
                    if (x_count < 2) begin
                        next_state = STATE_D;  // Monitor y for up to 2 cycles
                    end else begin
                        g = 0;  // Set g = 0 if y not found
                        next_state = STATE_A;  // Return to reset state
                    end
                end else begin
                    next_state = STATE_D;  // Stay in state D
                end
            end
            default: next_state = STATE_A;
        endcase
    end
endmodule

module top_module (
    input clk,
    input resetn,
    input x,
    input y,
    output reg f,
    output reg g
);

    typedef enum reg [2:0] {A, B, C, D} state_t;
    state_t state, next_state;
    reg [1:0] x_count;
    reg y_detected;

    always @(posedge clk or negedge resetn) begin
        if (!resetn) begin
            state <= A;
            f <= 0;
            g <= 0;
            x_count <= 0;
            y_detected <= 0;
        end else begin
            state <= next_state;
            if (next_state == B)
                f <= 1;
            else
                f <= 0;

            if (next_state == C)
                g <= 1;
            else if (next_state == D)
                g <= 0;
        end
    end

    always @(*) begin
        next_state = state;
        case (state)
            A: begin
                if (!resetn) begin
                    next_state = A;
                end else begin
                    next_state = B;
                end
            end
            B: begin
                if (x) begin
                    x_count = x_count + 1;
                    if (x_count == 2) begin
                        next_state = C;
                    end
                end else begin
                    x_count = 0;
                end
            end
            C: begin
                if (y) begin
                    y_detected = 1;
                    next_state = C;
                end else begin
                    if (y_detected) begin
                        next_state = C;
                    end else begin
                        next_state = D;
                    end
                end
            end
            D: begin
                next_state = D;
            end
        endcase
    end
endmodule

module top_module (
	input clk,
	input resetn,
	input x,
	input y,
	output reg f,
	output reg g
);

	typedef enum reg [2:0] {
		state_A,
		state_B,
		state_C,
		state_D
	} state_t;

	state_t current_state, next_state;
	reg [1:0] x_count;
	reg y_timer;

	always @(posedge clk or negedge resetn) begin
		if (!resetn) begin
			current_state <= state_A;
			f <= 0;
			g <= 0;
			x_count <= 0;
			y_timer <= 0;
		end else begin
			current_state <= next_state;
		end
	end

	always @(*) begin
		next_state = current_state;
		f = 0;
		g = 0;

		case (current_state)
			state_A: begin
				if (!resetn) begin
					next_state = state_A;
				end else begin
					f = 1;
					next_state = state_B;
				end
			end

			state_B: begin
				if (x == 1)
					x_count = 1;
				else
					x_count = 0;
				next_state = state_C;
			end

			state_C: begin
				if (x == 0 && x_count == 1)
					x_count = 2;
				else if (x == 1 && x_count == 2)
					x_count = 1;

				if (x_count == 2)
					next_state = state_D;
				else
					next_state = state_B;
			end

			state_D: begin
				g = 1;
				if (y_timer < 2) begin
					if (y == 1) begin
						g = 1;
						next_state = state_D;
					end else begin
						y_timer = y_timer + 1;
						next_state = state_D;
					end
				end else begin
					g = 0;
					next_state = state_D;
				end
			end
		endcase
	end
endmodule

module top_module (
    input clk,
    input resetn,
    input x,
    input y,
    output reg f,
    output reg g
);

    typedef enum reg [2:0] {
        STATE_A,
        STATE_B,
        STATE_C,
        STATE_D
    } state_t;

    state_t current_state, next_state;
    reg [2:0] count_x;  // Counter for x inputs
    reg [1:0] count_y;  // Counter for y inputs

    always @(posedge clk or negedge resetn) begin
        if (!resetn) begin
            current_state <= STATE_A;
            f <= 0;
            g <= 0;
            count_x <= 0;
            count_y <= 0;
        end else begin
            current_state <= next_state;
        end
    end

    always @(*) begin
        next_state = current_state;
        case (current_state)
            STATE_A: begin
                f = 0;
                g = 0;
                count_x = 0;
                count_y = 0;
                if (!resetn) begin
                    next_state = STATE_B;
                end
            end
            STATE_B: begin
                f = 1;  // Output f = 1 for one clock cycle
                g = 0;
                count_x = 1; // Start counting x values
                next_state = STATE_C;
            end
            STATE_C: begin
                f = 0;
                if (x == 1)
                    count_x = count_x + 1;
                else
                    count_x = 0;

                if (count_x == 3) begin
                    g = 1; // Set g = 1 after x = 1, 0, 1
                    next_state = STATE_D;
                end
            end
            STATE_D: begin
                f = 0;
                if (y == 1) begin
                    g = 1; // Maintain g = 1 if y = 1
                    count_y = 0;
                    next_state = STATE_D;
                end else if (count_y < 2) begin
                    count_y = count_y + 1;
                    g = 1; // Maintain g = 1 if within 2 cycles
                    next_state = STATE_D;
                end else begin
                    g = 0; // Set g = 0 if 2 cycles without y = 1
                    next_state = STATE_D;
                end
            end
        endcase
    end
endmodule

module top_module (
    input clk,
    input resetn,
    input x,
    input y,
    output reg f,
    output reg g
);

    typedef enum logic [2:0] {
        STATE_A,
        STATE_F_ON,
        STATE_X_MONITOR,
        STATE_G_ON,
        STATE_G_CHECK
    } state_t;

    state_t current_state, next_state;
    logic [2:0] x_count;

    always_ff @(posedge clk or negedge resetn) begin
        if (!resetn) begin
            current_state <= STATE_A;
            f <= 0;
            g <= 0;
            x_count <= 0;
        end else begin
            current_state <= next_state;
            if (next_state == STATE_F_ON) begin
                f <= 1;
            end else if (next_state == STATE_G_ON) begin
                g <= 1;
            end else if (next_state == STATE_G_CHECK) begin
                g <= 0;
            end else if (next_state == STATE_A) begin
                f <= 0;
                g <= 0;
            end
        end
    end

    always_ff @(posedge clk) begin
        if (current_state == STATE_X_MONITOR) begin
            if (x_count < 3) begin
                if (x) x_count <= x_count + 1;
                else x_count <= 0;
            end
        end else begin
            x_count <= 0;
        end
    end

    always_comb begin
        case (current_state)
            STATE_A: next_state = STATE_F_ON;
            STATE_F_ON: next_state = STATE_X_MONITOR;
            STATE_X_MONITOR: begin
                if (x_count == 3)
                    next_state = STATE_G_ON;
                else
                    next_state = STATE_X_MONITOR;
            end
            STATE_G_ON: next_state = STATE_G_CHECK;
            STATE_G_CHECK: begin
                if (y)
                    next_state = STATE_G_ON;
                else
                    next_state = STATE_A;
            end
            default: next_state = STATE_A;
        endcase
    end

endmodule

module top_module (
    input clk,
    input resetn,
    input x,
    input y,
    output reg f,
    output reg g
);

    reg [1:0] state;
    reg [2:0] x_counter;
    reg y_flag;

    parameter A = 2'b00, B = 2'b01, C = 2'b10, D = 2'b11;

    always @(posedge clk or negedge resetn) begin
        if (!resetn) begin
            state <= A;
            f <= 0;
            g <= 0;
            x_counter <= 0;
            y_flag <= 0;
        end else begin
            case (state)
                A: begin
                    f <= 1; // Set f to 1 for one cycle
                    state <= B;
                end

                B: begin
                    f <= 0; // Reset f
                    if (x == 1) begin
                        x_counter <= x_counter + 1;
                    end else begin
                        x_counter <= 0;
                    end
                    if (x_counter == 3) begin
                        g <= 1;
                        state <= C;
                        x_counter <= 0; // Reset the counter
                    end
                end

                C: begin
                    if (y && !y_flag) begin
                        y_flag <= 1; // Start tracking y
                    end else if (y_flag) begin
                        // Do nothing, keep g = 1
                    end else if (y_flag && x_counter < 2) begin
                        // Increment cycle count until 2 clock cycles
                        x_counter <= x_counter + 1;
                    end else if (x_counter >= 2) begin
                        g <= 0;
                        state <= D; // Move to state D
                    end
                end

                D: begin
                    // Remain in this state, g is permanently 0
                end

                default: state <= A; // Default case to handle unexpected states
            endcase
        end
    end

endmodule

module top_module (
    input clk,
    input resetn,
    input x,
    input y,
    output reg f,
    output reg g
);

    typedef enum reg [2:0] {
        STATE_A,
        STATE_B,
        STATE_C,
        STATE_D
    } state_t;

    state_t current_state, next_state;
    reg [2:0] x_cycle_counter;
    reg y_detected;

    always @(posedge clk or negedge resetn) begin
        if (!resetn) begin
            current_state <= STATE_A;
            f <= 0;
            g <= 0;
            x_cycle_counter <= 0;
            y_detected <= 0;
        end else begin
            current_state <= next_state;
        end
    end

    always @(*) begin
        next_state = current_state;
        f = 0;
        g = g; // Retain previous value of g
        case (current_state)
            STATE_A: begin
                f = 0;
                g = 0;
                if (resetn) begin
                    next_state = STATE_B;
                end
            end
            STATE_B: begin
                f = 1; // Set f to 1 for one clock cycle
                next_state = STATE_C;
                x_cycle_counter = 1;
            end
            STATE_C: begin
                if (x_cycle_counter < 3) begin
                    if (x == 1) begin
                        x_cycle_counter = x_cycle_counter + 1;
                    end else begin
                        x_cycle_counter = 0; // Reset counter if x is not 1
                    end
                end

                if (x_cycle_counter == 3) begin
                    g = 1; // Trigger g after three x cycles of 1
                    next_state = STATE_D;
                    y_detected = 0; // Reset y detection
                end
            end
            STATE_D: begin
                if (!y_detected) begin
                    if (y == 1) begin
                        g = 1; // Maintain g = 1 if y detected
                        y_detected = 1;
                    end else if (y_detected && y == 0) begin
                        // Continuing to monitor y
                    end
                end else begin
                    // If y has not become 1 in two clock cycles
                    if (x_cycle_counter >= 2) begin
                        g = 0; // Set g = 0 permanently if y not detected in time
                    end
                end
            end
        endcase
    end

endmodule

module top_module (
    input clk,
    input resetn,
    input x,
    input y,
    output reg f,
    output reg g
);

    typedef enum logic [1:0] {
        STATE_A,
        STATE_F,
        STATE_MONITOR_X,
        STATE_MONITOR_Y
    } state_t;

    state_t current_state, next_state;

    reg [2:0] x_counter; // Counter for tracking x sequence
    reg y_valid; // Flag to track y input validity

    always_ff @(posedge clk or negedge resetn) begin
        if (!resetn) begin
            current_state <= STATE_A;
            f <= 0;
            g <= 0;
            x_counter <= 0;
            y_valid <= 0;
        end else begin
            current_state <= next_state;
        end
    end

    always_ff @(posedge clk) begin
        if (current_state == STATE_F) begin
            f <= 1;
        end else begin
            f <= 0;
        end

        if (current_state == STATE_MONITOR_Y) begin
            if (y == 1) begin
                g <= 1; // Maintain g = 1
            end else if (y_valid) begin
                g <= 0; // Set g = 0
            end
        end
    end

    always_comb begin
        next_state = current_state;
        y_valid = 0;

        case (current_state)
            STATE_A: begin
                if (!resetn) begin
                    next_state = STATE_F;
                end
            end

            STATE_F: begin
                next_state = STATE_MONITOR_X;
            end

            STATE_MONITOR_X: begin
                if (x_counter == 3) begin
                    next_state = STATE_MONITOR_Y;
                    x_counter = 0; // Reset counter
                    y_valid = 1;   // Indicate we are in monitoring mode
                end else if (x == 1) begin
                    x_counter = x_counter + 1; // Increment counter
                end else begin
                    x_counter = 0; // Reset counter on 0 input
                end
            end

            STATE_MONITOR_Y: begin
                // Stay in this state, but check y in always_ff for outputs
            end
        endcase
    end

endmodule

module top_module (
	input clk,
	input resetn,
	input x,
	input y,
	output reg f,
	output reg g
);

    typedef enum logic [2:0] {
        A, B, C, D, E
    } state_t;

    state_t current_state, next_state;

    always_ff @(posedge clk or negedge resetn) begin
        if (!resetn)
            current_state <= A;
        else
            current_state <= next_state;
    end

    always_ff @(posedge clk) begin
        case (current_state)
            A: begin
                f <= 0;
                g <= 0;
                if (!resetn)
                    next_state <= A;
                else
                    next_state <= B;
            end

            B: begin
                f <= 1;
                next_state <= C;
            end

            C: begin
                f <= 0;
                if (x == 1)
                    next_state <= D;
                else
                    next_state <= A;
            end

            D: begin
                if (x == 0)
                    next_state <= A;
                else
                    next_state <= E;
            end

            E: begin
                g <= 1;
                next_state <= F;
            end

            F: begin
                if (y == 1)
                    g <= 1;
                else if (y == 0)
                    next_state <= G;
                else
                    next_state <= F;
            end

            G: begin
                g <= 0;
                next_state <= A;
            end

            default: next_state <= A;
        endcase
    end
endmodule

module top_module (
	input clk,
	input resetn,
	input x,
	input y,
	output reg f,
	output reg g
);

	reg [1:0] state;
	reg [1:0] next_state;
	reg [2:0] counter_x;
	reg [1:0] counter_y;

	localparam STATE_A = 2'b00;
	localparam STATE_B = 2'b01;
	localparam STATE_C = 2'b10;

	always @(posedge clk or negedge resetn) begin
		if (!resetn) begin
			state <= STATE_A;
			f <= 0;
			g <= 0;
			counter_x <= 0;
			counter_y <= 0;
		end else begin
			state <= next_state;
		end
	end

	always @* begin
		next_state = state;
		f = 0;
		g = g;

		case (state)
			STATE_A: begin
				f = 0;
				if (resetn) begin
					f = 1; // Set f to 1 after reset
					next_state = STATE_B;
				end
			end

			STATE_B: begin
				if (x == 1) begin
					counter_x = counter_x + 1;
				end else begin
					counter_x = 0; // Reset counter on 0
				end

				if (counter_x == 3) begin
					g = 1; // Set g to 1 after 1, 0, 1 sequence
					next_state = STATE_C;
				end
			end

			STATE_C: begin
				if (y == 1) begin
					g = 1; // Maintain g = 1 if y is 1
				end else begin
					counter_y = counter_y + 1;
					if (counter_y >= 2) begin
						g = 0; // Set g = 0 if y is not 1 in 2 cycles
					end
				end
			end
		endcase
	end
endmodule

module top_module (
    input clk,
    input resetn,
    input x,
    input y,
    output reg f,
    output reg g
);

    typedef enum reg [2:0] {A, B, C, D} state_t;
    state_t state, next_state;

    reg [1:0] x_count;
    reg [1:0] y_count;

    always @(posedge clk or negedge resetn) begin
        if (!resetn) begin
            state <= A;
            f <= 0;
            g <= 0;
            x_count <= 0;
            y_count <= 0;
        end else begin
            state <= next_state;
        end
    end

    always @* begin
        next_state = state;
        f = 0;
        g = g; // retain current g value

        case (state)
            A: begin
                f = 0;
                x_count = 0;
                if (!resetn) begin
                    next_state = A;
                end else begin
                    f = 1;
                    next_state = B;
                end
            end

            B: begin
                f = 1;
                if (x == 1) begin
                    x_count = 1;
                    next_state = B;
                end else if (x == 0) begin
                    x_count = 2;
                    next_state = C;
                end
            end

            C: begin
                if (x == 1) begin
                    x_count = 3;
                end
                if (x_count == 2 && x == 1) begin
                    g = 1;
                    next_state = D;
                end else if (x_count == 3 && x == 0) begin
                    next_state = A;
                end
            end

            D: begin
                g = 1;
                if (y == 1) begin
                    y_count = 0;
                end else if (y_count < 2) begin
                    y_count = y_count + 1;
                end else begin
                    g = 0;
                end
                next_state = D;
            end
        endcase
    end
endmodule

module top_module (
	input clk,
	input resetn,
	input x,
	input y,
	output reg f,
	output reg g
);

	typedef enum reg [1:0] {A, B, C, D} state_t;
	state_t state, next_state;

	// Sequential logic for state transitions
	always @(posedge clk or negedge resetn) begin
		if (!resetn)
			state <= A;
		else
			state <= next_state;
	end

	// Combinational logic for state transitions and outputs
	always @* begin
		next_state = state;
		f = 0;
		g = 0;

		case (state)
			A: begin
				f = 1;
				next_state = B;
			end

			B: begin
				if (x == 1)
					next_state = C;
				else
					next_state = A;
			end

			C: begin
				if (x == 0)
					next_state = D;
				else
					next_state = A;
			end

			D: begin
				if (x == 1) begin
					g = 1;
					next_state = D;
				end else if (y == 1) begin
					g = 1;
					next_state = D;
				end else if (y == 0) begin
					next_state = A; // Reset to initial state
				end
			end

		endcase
	end

endmodule

module top_module (
	input clk,
	input resetn,
	input x,
	input y,
	output reg f,
	output reg g
);

	typedef enum logic [1:0] {
		A, B, C, D, E
	} state_t;

	state_t state, next_state;
	integer x_count; // To count the successive x values

	always_ff @(posedge clk or negedge resetn) begin
		if (!resetn) begin
			state <= A;
			f <= 0;
			g <= 0;
			x_count <= 0;
		end else begin
			state <= next_state;
		end
	end

	always_ff @(posedge clk) begin
		if (state == A) begin
			f <= 0; // f is 0 while in state A
		end else if (state == B) begin
			f <= 1; // f is set to 1 after reset
		end else if (state == C) begin
			f <= 0; // f reset back to 0 in some states
		end
	end

	always_ff @(posedge clk) begin
		if (state == B) begin
			x_count <= 1;
		end else if (state == C) begin
			x_count <= x_count + 1;
		end else begin
			x_count <= 0;
		end
	end

	always_comb begin
		case (state)
			A: begin
				next_state = resetn ? A : B;
			end
			B: begin
				if (x == 1)
					next_state = C; // Go to check x
				else
					next_state = B;
			end
			C: begin
				if (x == 0)
					x_count = 1; // Count the 0
				else if (x == 1 && x_count == 1)
					next_state = D; // Move to state D after 1, 0, 1
				else
					next_state = C;
			end
			D: begin
				g <= 1; // Set g to 1
				if (y == 1)
					next_state = E; // Stay permanently if y is 1
				else
					next_state = A; // Else go back to A
			end
			E: begin
				if (y == 1)
					g <= 1; // Maintain g = 1
				else
					next_state = A; // Set g = 0 and go back
			end
		endcase
	end
endmodule

module top_module (
    input clk,
    input resetn,
    input x,
    input y,
    output reg f,
    output reg g
);

    reg [1:0] state;
    reg [1:0] count_x;
    reg count_y;

    parameter STATE_A = 2'b00;
    parameter STATE_B = 2'b01;
    parameter STATE_C = 2'b10;
    parameter STATE_D = 2'b11;

    always @(posedge clk or negedge resetn) begin
        if (!resetn) begin
            state <= STATE_A;
            f <= 0;
            g <= 0;
            count_x <= 0;
            count_y <= 0;
        end else begin
            case (state)
                STATE_A: begin
                    f <= 1;
                    state <= STATE_B;
                    count_x <= 0;
                end
                STATE_B: begin
                    if (x == 1) begin
                        count_x <= count_x + 1;
                        if (count_x == 2) begin
                            state <= STATE_C;
                        end
                    end else begin
                        count_x <= 0;
                    end
                    f <= 1;
                end
                STATE_C: begin
                    g <= 1;
                    count_y <= 0;
                    state <= STATE_D;
                end
                STATE_D: begin
                    if (y == 1) begin
                        g <= 1;
                    end else begin
                        count_y <= count_y + 1;
                        if (count_y == 2) begin
                            g <= 0;
                        end
                    end
                end
            endcase
        end
    end
endmodule

module top_module (
    input clk,
    input resetn,
    input x,
    input y,
    output reg f,
    output reg g
);

    typedef enum reg [2:0] {A, B, C, D, E} state_t;
    state_t state, next_state;
    reg [1:0] x_count;
    reg y_detected;

    always @(posedge clk or negedge resetn) begin
        if (!resetn) begin
            state <= A;
            f <= 0;
            g <= 0;
            x_count <= 0;
            y_detected <= 0;
        end else begin
            state <= next_state;
        end
    end

    always @(state or x or y or x_count or y_detected) begin
        case (state)
            A: begin
                f = 0;
                g = 0;
                x_count = 0;
                y_detected = 0;
                next_state = B;
            end
            B: begin
                f = 1; // Activate f for one cycle
                next_state = C;
            end
            C: begin
                if (x == 1) begin
                    x_count = x_count + 1;
                end else begin
                    x_count = 0;
                end
                if (x_count == 2) begin
                    next_state = D; // Prepare to check y
                end else begin
                    next_state = C; // Stay in the same state
                end
            end
            D: begin
                g = 1;
                if (y == 1) begin
                    y_detected = 1; // y detected within 2 clock cycles
                    next_state = E;
                end else begin
                    next_state = A; // Reset to state A if y is not 1
                end
            end
            E: begin
                g = 1; // Maintain g = 1
                if (y == 0) begin
                    next_state = A; // Reset if y goes to 0
                end else begin
                    next_state = E; // Stay in same state if y = 1
                end
            end
            default: next_state = A; // Default to reset state
        endcase
    end

endmodule

module top_module (
    input clk,
    input resetn,
    input x,
    input y,
    output reg f,
    output reg g
);

    typedef enum reg [2:0] {A, B, C, D} state_t;
    state_t current_state, next_state;

    reg [1:0] count_x;
    reg count_y;

    always @(posedge clk or negedge resetn) begin
        if (!resetn) begin
            current_state <= A;
            f <= 0;
            g <= 0;
            count_x <= 0;
            count_y <= 0;
        end else begin
            current_state <= next_state;
            if (current_state == B) begin
                f <= 1;
            end else begin
                f <= 0;
            end
        end
    end

    always @(*) begin
        case (current_state)
            A: begin
                next_state = B;
            end
            B: begin
                if (x == 1) begin
                    count_x = count_x + 1;
                    if (count_x == 2) begin
                        next_state = C;
                    end else begin
                        next_state = B;
                    end
                end else begin
                    count_x = 0;
                    next_state = B;
                end
            end
            C: begin
                g = 1;
                count_y = 0; // Reset the counter when entering state C
                next_state = D;
            end
            D: begin
                if (y == 1) begin
                    g = 1; // Maintain g = 1
                    next_state = D;
                end else if (count_y < 2) begin
                    count_y = count_y + 1; // Increment counter if y is not 1
                    next_state = D;
                end else begin
                    g = 0;
                    next_state = D;
                end
            end
            default: next_state = A;
        endcase
    end

endmodule

module top_module (
    input clk,
    input resetn,
    input x,
    input y,
    output reg f,
    output reg g
);
    typedef enum logic [2:0] {
        state_A,
        state_B,
        state_C,
        state_D,
        state_E
    } state_t;

    state_t current_state, next_state;
    logic [1:0] x_count;
    logic y_detected;

    always_ff @(posedge clk or negedge resetn) begin
        if (!resetn) begin
            current_state <= state_A;
            f <= 0;
            g <= 0;
            x_count <= 0;
            y_detected <= 0;
        end else begin
            current_state <= next_state;
            f <= (next_state == state_B) ? 1 : 0; // f = 1 in state_B for one clock cycle
            if (next_state == state_C) g <= 1; // Set g when going to state C
            if (next_state == state_D) g <= 0; // Reset g if we go to state D
            if (next_state == state_E) g <= g; // Maintain g when going to state E
        end
    end

    always_ff @(posedge clk) begin
        if (current_state == state_A) begin
            next_state <= state_B; // Move to state B after reset
        end else if (current_state == state_B) begin
            x_count <= {x_count[0], x}; // Shift register for x values
            if (x_count == 2'b01) begin // Check if we receive 1, 0, 1
                next_state <= state_C;
            end else begin
                next_state <= state_B;
            end
        end else if (current_state == state_C) begin
            if (y == 1) begin
                next_state <= state_E; // Go to permanent state if y is detected
            end else begin
                next_state <= state_D; // Go to state D if y is not detected
            end
        end else if (current_state == state_D) begin
            // Remain in state D
            next_state <= state_D;
        end else if (current_state == state_E) begin
            // Remain in state E
            next_state <= state_E;
        end
    end

endmodule

module top_module (
	input clk,
	input resetn,
	input x,
	input y,
	output reg f,
	output reg g
);

	typedef enum reg [1:0] {A, B, C, D} state_t;
	state_t state, next_state;
	reg [1:0] x_count;
	reg y_flag;

	always @(posedge clk or negedge resetn) begin
		if (!resetn) begin
			state <= A;
			f <= 0;
			g <= 0;
			x_count <= 0;
			y_flag <= 0;
		end else begin
			state <= next_state;
		end
	end

	always @(state or x or y) begin
		next_state = state;
		f = 0;
		g = 0;

		case (state)
			A: begin
				if (!resetn) begin
					next_state = A;
				end else begin
					f = 1;  // set f to 1 for one clock cycle
					next_state = B;
				end
			end

			B: begin
				if (x == 1) begin
					x_count = x_count + 1;
					if (x_count == 2) begin
						next_state = C;
					end
				end else begin
					x_count = 0;
				end
			end

			C: begin
				if (x == 0) begin
					x_count = x_count + 1;
				end else begin
					x_count = 0;
				end
				if (x_count == 2) begin
					next_state = D;
				end
			end

			D: begin
				if (y == 1) begin
					g = 1;  // maintain g = 1
					y_flag = 1;
				end else if (y_flag && (x_count < 2)) begin
					g = 0;  // set g = 0 if y did not go to 1
				end else begin
					x_count = x_count + 1;
				end
			end

		endcase
	end
endmodule

module top_module (
	input clk,
	input resetn,
	input x,
	input y,
	output reg f,
	output reg g
);

	typedef enum reg [1:0] {
		A, B, C, D
	} state_t;

	state_t current_state, next_state;
	reg [1:0] x_count;

	always @(posedge clk or negedge resetn) begin
		if (!resetn) begin
			current_state <= A;
			f <= 0;
			g <= 0;
			x_count <= 0;
		end else begin
			current_state <= next_state;
		end
	end

	always @(current_state or x or y) begin
		case (current_state)
			A: begin
				f = 0;
				g = 0;
				x_count = 0;
				if (!resetn) next_state = A;
				else next_state = B; // After reset, move to state B
			end
			B: begin
				f = 1; // Set output f to 1 for one clock cycle
				next_state = C;
			end
			C: begin
				if (x == 1 && x_count < 2) begin
					x_count = x_count + 1;
					next_state = C;
				end else if (x == 0 && x_count < 2) begin
					x_count = 0;
					next_state = C;
				end else if (x_count == 2 && x == 1) begin
					g = 1;
					next_state = D;
				end else begin
					next_state = A; // Go back to A if the pattern is not matched
				end
			end
			D: begin
				if (y == 1) begin
					g = 1; // Maintain g = 1 permanently
					next_state = D;
				end else begin
					if (x_count < 2) begin
						x_count = x_count + 1;
						next_state = D;
					end else begin
						g = 0; // Set g = 0 permanently
						next_state = A;
					end
				end
			end
		endcase
	end

endmodule

module top_module (
    input clk,
    input resetn,
    input x,
    input y,
    output reg f,
    output reg g
);

    typedef enum logic [1:0] {
        STATE_A,
        STATE_B,
        STATE_C,
        STATE_D,
        STATE_E
    } state_t;

    state_t current_state, next_state;
    logic [2:0] x_counter; // To count occurrences of x (1, 0, 1)
    logic y_flag; // To indicate if y=1 was seen within 2 cycles

    always_ff @(posedge clk or negedge resetn) begin
        if (!resetn) begin
            current_state <= STATE_A;
            f <= 0;
            g <= 0;
            x_counter <= 0;
            y_flag <= 0;
        end else begin
            current_state <= next_state;
        end
    end

    always_ff @(posedge clk) begin
        if (current_state == STATE_B) begin
            f <= 1; // Set f for one clock cycle
        end else if (current_state == STATE_C) begin
            if (x_counter == 3) begin
                g <= 1; // Set g to 1 after observing 1, 0, 1
            end
        end else if (current_state == STATE_D) begin
            if (y_flag) begin
                g <= 1; // Maintain g = 1 if y = 1 within 2 cycles
            end else if (x_counter < 2) begin
                y_flag <= 0; // Set flag low if y is not seen
            end
        end
    end

    always_comb begin
        next_state = current_state;
        case (current_state)
            STATE_A: begin
                if (!resetn) begin
                    next_state = STATE_B; // Transition to state B after reset
                end
            end
            STATE_B: begin
                next_state = STATE_C; // Go to state C after setting f
            end
            STATE_C: begin
                if (x) begin
                    x_counter = x_counter + 1; // Count occurrence of 1
                end else begin
                    x_counter = 0; // Reset count if we see 0
                end
                if (x_counter == 3) begin
                    next_state = STATE_D; // Move to state D to check y
                end
            end
            STATE_D: begin
                if (y) begin
                    y_flag <= 1; // Set y flag if y=1
                end
                if (!y) begin
                    y_flag <= 0; // Reset y flag if y=0
                end
                next_state = STATE_D; // Remain in state D for further checks
            end
            default: next_state = STATE_A; // Default back to state A
        endcase
    end

endmodule


module top_module(
	input clk,
	input [7:0] d,
	input reset,
	output reg [7:0] q);

	always @(negedge clk) begin
		if (reset) begin
			q <= 8'h34;
		end else begin
			q <= d;
		end
	end

endmodule

module top_module(
	input clk,
	input [7:0] d,
	input reset,
	output reg [7:0] q);

	always @(negedge clk or posedge reset) begin
		if (reset) begin
			q <= 8'h34; // Reset value
		end else begin
			q <= d; // Update q with the input d
		end
	end

endmodule

module top_module(
	input clk,
	input [7:0] d,
	input reset,
	output reg [7:0] q);

	always @(negedge clk or posedge reset) begin
		if (reset) begin
			q <= 8'h34;
		end else begin
			q <= d;
		end
	end
endmodule

module top_module(
    input clk,
    input [7:0] d,
    input reset,
    output reg [7:0] q
);
    always @(negedge clk or posedge reset) begin
        if (reset) begin
            q <= 8'h34;
        end else begin
            q <= d;
        end
    end
endmodule

module top_module(
	input clk,
	input [7:0] d,
	input reset,
	output reg [7:0] q);

	always @(negedge clk) begin
		if (reset)
			q <= 8'h34; // Reset to 0x34
		else
			q <= d; // Load the value of d
	end
endmodule

module top_module(
    input clk,
    input [7:0] d,
    input reset,
    output reg [7:0] q
);

always @(negedge clk or posedge reset) begin
    if (reset) begin
        q <= 8'b00110100; // 0x34
    end else begin
        q <= d;
    end
end

endmodule

module top_module(
    input clk,
    input [7:0] d,
    input reset,
    output reg [7:0] q);

    always @(negedge clk) begin
        if (reset) begin
            q <= 8'b00110100; // 0x34
        end else begin
            q <= d;
        end
    end
endmodule

module top_module(
	input clk,
	input [7:0] d,
	input reset,
	output reg [7:0] q);

	always @(negedge clk or posedge reset) begin
		if (reset)
			q <= 8'h34;
		else
			q <= d;
	end

endmodule

module top_module(
    input clk,
    input [7:0] d,
    input reset,
    output reg [7:0] q
);
    always @(negedge clk or posedge reset) begin
        if (reset)
            q <= 8'h34; // Reset to 0x34
        else
            q <= d; // Update q with d
    end
endmodule

module top_module(
    input clk,
    input [7:0] d,
    input reset,
    output reg [7:0] q
);

    always @(negedge clk) begin
        if (reset) begin
            q <= 8'h34;
        end else begin
            q <= d;
        end
    end

endmodule

module top_module(
    input clk,
    input [7:0] d,
    input reset,
    output reg [7:0] q
);

always @(negedge clk or posedge reset) begin
    if (reset) begin
        q <= 8'b00110100; // Set to 0x34
    end else begin
        q <= d;
    end
end

endmodule

module top_module(
	input clk,
	input [7:0] d,
	input reset,
	output reg [7:0] q);

	always @(negedge clk or posedge reset) begin
		if (reset) begin
			q <= 8'b00110100; // 0x34 in binary
		end else begin
			q <= d;
		end
	end
endmodule

module top_module(
    input clk,
    input [7:0] d,
    input reset,
    output reg [7:0] q
);

    always @(negedge clk or posedge reset) begin
        if (reset) begin
            q <= 8'h34; // Set to 0x34 on reset
        end else begin
            q <= d; // Capture the D input on negative edge
        end
    end

endmodule


module top_module (
	input [7:0] in,
	output parity
);
	assign parity = ^in; // Compute the XOR of all bits in the input to generate even parity
endmodule

module top_module (
	input [7:0] in,
	output parity
);
assign parity = ^in;
endmodule

module top_module (
	input [7:0] in,
	output parity
);
	assign parity = in[0] ^ in[1] ^ in[2] ^ in[3] ^ in[4] ^ in[5] ^ in[6] ^ in[7];
endmodule

module top_module (
    input [7:0] in,
    output parity
);
    assign parity = ~(in[0] ^ in[1] ^ in[2] ^ in[3] ^ in[4] ^ in[5] ^ in[6] ^ in[7]);
endmodule

module top_module (
    input [7:0] in,
    output parity
);
    assign parity = ^in; // Even parity is calculated using XOR of all bits
endmodule


module top_module (
    input in,
    input [1:0] state,
    output reg [1:0] next_state,
    output out
);

    always @(*) begin
        case (state)
            2'b00: next_state = (in == 0) ? 2'b00 : 2'b01; // A
            2'b01: next_state = (in == 0) ? 2'b10 : 2'b01; // B
            2'b10: next_state = (in == 0) ? 2'b00 : 2'b11; // C
            2'b11: next_state = (in == 0) ? 2'b10 : 2'b01; // D
            default: next_state = 2'b00; // Default case
        endcase
    end

    assign out = (state == 2'b11) ? 1 : 0; // Output logic based on state D

endmodule

module top_module (
    input in,
    input [1:0] state,
    output reg [1:0] next_state,
    output out
);

always @(*) begin
    case(state)
        2'b00: begin // State A
            next_state = (in) ? 2'b01 : 2'b00; // A -> B if in=1; A -> A if in=0
            out = 0;
        end
        2'b01: begin // State B
            next_state = (in) ? 2'b01 : 2'b10; // B -> B if in=1; B -> C if in=0
            out = 0;
        end
        2'b10: begin // State C
            next_state = (in) ? 2'b11 : 2'b00; // C -> D if in=1; C -> A if in=0
            out = 0;
        end
        2'b11: begin // State D
            next_state = (in) ? 2'b10 : 2'b01; // D -> C if in=1; D -> B if in=0
            out = 1;
        end
        default: begin
            next_state = 2'b00; // Default to state A
            out = 0;
        end
    endcase
end

endmodule

module top_module (
    input in,
    input [1:0] state,
    output reg [1:0] next_state,
    output out
);

    assign out = (state == 2'b11) ? 1 : 0; // Output logic

    always @(*) begin
        case (state)
            2'b00: next_state = (in == 0) ? 2'b00 : 2'b01; // A
            2'b01: next_state = (in == 0) ? 2'b10 : 2'b01; // B
            2'b10: next_state = (in == 0) ? 2'b00 : 2'b11; // C
            2'b11: next_state = (in == 0) ? 2'b10 : 2'b01; // D
            default: next_state = 2'b00; // Default case
        endcase
    end

endmodule

module top_module (
    input in,
    input [1:0] state,
    output reg [1:0] next_state,
    output out
);

always @(*) begin
    case (state)
        2'b00: next_state = (in == 0) ? 2'b00 : 2'b01; // A
        2'b01: next_state = (in == 0) ? 2'b10 : 2'b01; // B
        2'b10: next_state = (in == 0) ? 2'b00 : 2'b11; // C
        2'b11: next_state = (in == 0) ? 2'b10 : 2'b01; // D
        default: next_state = 2'b00; // Default case
    endcase
end

assign out = (state == 2'b11) ? 1'b1 : 1'b0; // Output logic for state D

endmodule

module top_module (
	input in,
	input [1:0] state,
	output reg [1:0] next_state,
	output out
);

always @(*) begin
	case (state)
		2'b00: next_state = (in) ? 2'b01 : 2'b00; // State A
		2'b01: next_state = (in) ? 2'b01 : 2'b10; // State B
		2'b10: next_state = (in) ? 2'b11 : 2'b00; // State C
		2'b11: next_state = (in) ? 2'b01 : 2'b10; // State D
		default: next_state = 2'b00; // Default case
	endcase
end

assign out = (state == 2'b11) ? 1 : 0; // Output logic

endmodule

module top_module (
	input in,
	input [1:0] state,
	output reg [1:0] next_state,
	output out
);

always @(*) begin
	case (state)
		2'b00: next_state = (in) ? 2'b01 : 2'b00; // State A
		2'b01: next_state = (in) ? 2'b01 : 2'b10; // State B
		2'b10: next_state = (in) ? 2'b11 : 2'b00; // State C
		2'b11: next_state = (in) ? 2'b01 : 2'b10; // State D
		default: next_state = 2'b00; // Default case
	endcase
end

assign out = (state == 2'b11) ? 1'b1 : 1'b0; // Output logic

endmodule

module top_module (
    input in,
    input [1:0] state,
    output reg [1:0] next_state,
    output out
);

always @(*) begin
    case (state)
        2'b00: next_state = (in == 0) ? 2'b00 : 2'b01; // A
        2'b01: next_state = (in == 0) ? 2'b10 : 2'b01; // B
        2'b10: next_state = (in == 0) ? 2'b00 : 2'b11; // C
        2'b11: next_state = (in == 0) ? 2'b10 : 2'b01; // D
        default: next_state = 2'b00; // Default case
    endcase
end

assign out = (state == 2'b11) ? 1'b1 : 1'b0; // Output logic

endmodule

module top_module (
	input in,
	input [1:0] state,
	output reg [1:0] next_state,
	output out
);

always @* begin
	case (state)
		2'b00: next_state = (in) ? 2'b01 : 2'b00; // A
		2'b01: next_state = (in) ? 2'b01 : 2'b10; // B
		2'b10: next_state = (in) ? 2'b11 : 2'b00; // C
		2'b11: next_state = (in) ? 2'b01 : 2'b10; // D
		default: next_state = 2'b00; // Default case
	endcase
end

assign out = (state == 2'b11) ? 1'b1 : 1'b0; // Output logic for state D

endmodule

module top_module (
	input in,
	input [1:0] state,
	output reg [1:0] next_state,
	output out
);

always @(*) begin
	case (state)
		2'b00: next_state = (in == 0) ? 2'b00 : 2'b01; // A
		2'b01: next_state = (in == 0) ? 2'b10 : 2'b01; // B
		2'b10: next_state = (in == 0) ? 2'b00 : 2'b11; // C
		2'b11: next_state = (in == 0) ? 2'b10 : 2'b01; // D
		default: next_state = 2'b00; // Default case
	endcase
end

assign out = (state == 2'b11) ? 1 : 0; // Output logic for state D

endmodule

module top_module (
	input in,
	input [1:0] state,
	output reg [1:0] next_state,
	output out
);

	assign out = (state == 2'b11) ? 1 : 0; // Output is 1 if in state D (2'b11), else 0

	always @(*) begin
		case (state)
			2'b00: next_state = (in == 0) ? 2'b00 : 2'b01; // State A
			2'b01: next_state = (in == 0) ? 2'b10 : 2'b01; // State B
			2'b10: next_state = (in == 0) ? 2'b00 : 2'b11; // State C
			2'b11: next_state = (in == 0) ? 2'b10 : 2'b01; // State D
			default: next_state = 2'b00; // Default case
		endcase
	end

endmodule

module top_module (
	input in,
	input [1:0] state,
	output reg [1:0] next_state,
	output out
);

always @(*) begin
	case(state)
		2'b00: next_state = (in == 0) ? 2'b00 : 2'b01; // State A
		2'b01: next_state = (in == 0) ? 2'b10 : 2'b01; // State B
		2'b10: next_state = (in == 0) ? 2'b00 : 2'b11; // State C
		2'b11: next_state = (in == 0) ? 2'b10 : 2'b01; // State D
		default: next_state = 2'b00; // Default case
	endcase
end

assign out = (state == 2'b11) ? 1 : 0; // Output logic

endmodule

module top_module (
	input in,
	input [1:0] state,
	output reg [1:0] next_state,
	output out
);

always @(*) begin
	case (state)
		2'b00: next_state = (in == 0) ? 2'b00 : 2'b01; // A
		2'b01: next_state = (in == 0) ? 2'b10 : 2'b01; // B
		2'b10: next_state = (in == 0) ? 2'b00 : 2'b11; // C
		2'b11: next_state = (in == 0) ? 2'b10 : 2'b01; // D
		default: next_state = 2'b00; // Default case
	endcase
end

assign out = (state == 2'b11) ? 1 : 0; // Output logic

endmodule

module top_module (
    input in,
    input [1:0] state,
    output reg [1:0] next_state,
    output out
);
    assign out = (state == 2'b11 && in == 1) ? 1 : 0;

    always @(*) begin
        case (state)
            2'b00: next_state = (in == 0) ? 2'b00 : 2'b01; // A
            2'b01: next_state = (in == 0) ? 2'b10 : 2'b01; // B
            2'b10: next_state = (in == 0) ? 2'b00 : 2'b11; // C
            2'b11: next_state = (in == 0) ? 2'b10 : 2'b01; // D
            default: next_state = 2'b00; // Default case to avoid latches
        endcase
    end
endmodule

module top_module (
    input in,
    input [1:0] state,
    output reg [1:0] next_state,
    output out
);

always @(*) begin
    case(state)
        2'b00: next_state = (in) ? 2'b01 : 2'b00; // A
        2'b01: next_state = (in) ? 2'b01 : 2'b10; // B
        2'b10: next_state = (in) ? 2'b11 : 2'b00; // C
        2'b11: next_state = (in) ? 2'b01 : 2'b10; // D
        default: next_state = 2'b00; // default case
    endcase
end

assign out = (state == 2'b11) ? 1 : 0; // Output logic for state D

endmodule

module top_module (
    input in,
    input [1:0] state,
    output reg [1:0] next_state,
    output out
);
    assign out = (state == 2'b11 && in == 1) ? 1 : 0;

    always @(*) begin
        case (state)
            2'b00: next_state = (in == 0) ? 2'b00 : 2'b01; // A
            2'b01: next_state = (in == 0) ? 2'b10 : 2'b01; // B
            2'b10: next_state = (in == 0) ? 2'b00 : 2'b11; // C
            2'b11: next_state = (in == 0) ? 2'b10 : 2'b01; // D
            default: next_state = 2'b00; // Default case for safety
        endcase
    end
endmodule

module top_module (
    input in,
    input [1:0] state,
    output reg [1:0] next_state,
    output out
);

    assign out = (state == 2'b11) ? 1 : 0; // Output is 1 only in state D

    always @(*) begin
        case (state)
            2'b00: next_state = (in == 0) ? 2'b00 : 2'b01; // A
            2'b01: next_state = (in == 0) ? 2'b10 : 2'b01; // B
            2'b10: next_state = (in == 0) ? 2'b00 : 2'b11; // C
            2'b11: next_state = (in == 0) ? 2'b10 : 2'b01; // D
            default: next_state = 2'b00; // Default case (not reached in a valid scenario)
        endcase
    end

endmodule

module top_module (
    input in,
    input [1:0] state,
    output reg [1:0] next_state,
    output out
);

always @(*) begin
    case (state)
        2'b00: next_state = (in == 0) ? 2'b00 : 2'b01; // A
        2'b01: next_state = (in == 0) ? 2'b10 : 2'b01; // B
        2'b10: next_state = (in == 0) ? 2'b00 : 2'b11; // C
        2'b11: next_state = (in == 0) ? 2'b10 : 2'b01; // D
        default: next_state = 2'b00; // Default case
    endcase
end

assign out = (state == 2'b11) ? 1 : 0; // Output logic for D

endmodule

module top_module (
	input in,
	input [1:0] state,
	output reg [1:0] next_state,
	output out
);

always @(*) begin
	case (state)
		2'b00: next_state = (in == 0) ? 2'b00 : 2'b01; // A
		2'b01: next_state = (in == 0) ? 2'b10 : 2'b01; // B
		2'b10: next_state = (in == 0) ? 2'b00 : 2'b11; // C
		2'b11: next_state = (in == 0) ? 2'b10 : 2'b01; // D
		default: next_state = 2'b00; // Default case (reset state)
	endcase
end

assign out = (state == 2'b11) ? 1'b1 : 1'b0; // Output logic

endmodule

module top_module (
	input in,
	input [1:0] state,
	output reg [1:0] next_state,
	output out
);

always @(*) begin
    case (state)
        2'b00: next_state = (in == 0) ? 2'b00 : 2'b01; // A
        2'b01: next_state = (in == 0) ? 2'b10 : 2'b01; // B
        2'b10: next_state = (in == 0) ? 2'b00 : 2'b11; // C
        2'b11: next_state = (in == 0) ? 2'b10 : 2'b01; // D
        default: next_state = 2'b00; // Default state
    endcase
end

assign out = (state == 2'b11); // Output is 1 only in state D

endmodule

module top_module (
    input in,
    input [1:0] state,
    output reg [1:0] next_state,
    output out
);

always @(*) begin
    case (state)
        2'b00: next_state = in ? 2'b01 : 2'b00; // A
        2'b01: next_state = in ? 2'b01 : 2'b10; // B
        2'b10: next_state = in ? 2'b11 : 2'b00; // C
        2'b11: next_state = in ? 2'b01 : 2'b10; // D
        default: next_state = 2'b00; // Default to A
    endcase
end

assign out = (state == 2'b11) ? 1 : 0; // Output logic

endmodule


module top_module(
    input x,
    input y,
    output reg z
);
    always @* begin
        case ({x, y})
            2'b00: z = 1;
            2'b01: z = 0;
            2'b10: z = 0;
            2'b11: z = 1;
            default: z = 1; // default case to handle any undefined states
        endcase
    end
endmodule

module top_module(
    input x,
    input y,
    output reg z
);
    always @(*) begin
        case ({x, y})
            2'b00: z = 1; // from 0ns to 20ns
            2'b10: z = 0; // from 25ns to 30ns
            2'b01: z = 0; // from 35ns to 40ns
            2'b11: z = 1; // from 45ns to 50ns and 70ns to 70ns
            default: z = 1; // default case for other inputs
        endcase
    end
endmodule

module top_module(
    input x,
    input y,
    output reg z
);
    reg [3:0] state;

    always @(x, y) begin
        case (state)
            4'b0000: begin z = 1; end // 0ns to 20ns
            4'b0001: begin z = 0; end // 25ns to 30ns
            4'b0010: begin z = 0; end // 35ns to 40ns
            4'b0011: begin z = 1; end // 45ns to 50ns
            4'b0100: begin z = 1; end // 55ns to 60ns
            4'b0101: begin z = 0; end // 60ns to 65ns
            4'b0110: begin z = 0; end // 65ns to 70ns
            4'b0111: begin z = 1; end // 70ns to 75ns
            4'b1000: begin z = 0; end // 75ns to 80ns
            4'b1001: begin z = 0; end // 80ns to 85ns
            4'b1010: begin z = 0; end // 85ns to 90ns
            default: begin z = 1; end // default state
        endcase
    end
endmodule

module top_module(
    input x,
    input y,
    output reg z
);
    always @(*) begin
        case ({x, y})
            2'b00: z = 1;
            2'b01: z = 0;
            2'b10: z = 0;
            2'b11: z = 1;
            default: z = 1; // Default case
        endcase
    end
endmodule

module top_module(
    input x,
    input y,
    output reg z
);
    always @(*) begin
        case ({x, y})
            2'b00: z = 1;
            2'b01: z = 0;
            2'b10: z = 0;
            2'b11: z = 1;
            default: z = 1'bx;
        endcase
    end
endmodule

module top_module(
    input x,
    input y,
    output reg z
);
    always @(*) begin
        case ({x, y})
            2'b00: z = 1;
            2'b01: z = 0;
            2'b10: z = 0;
            2'b11: z = 1;
            default: z = 1; // default case to handle unknown states
        endcase
    end
endmodule

module top_module(
    input x,
    input y,
    output reg z
);
    always @(*) begin
        case ({x, y})
            2'b00: z = 1; // For (0, 0)
            2'b01: z = 0; // For (0, 1)
            2'b10: z = 0; // For (1, 0)
            2'b11: z = 1; // For (1, 1)
            default: z = 1; // Default case, can handle unexpected input
        endcase
    end
endmodule

module top_module(
    input x,
    input y,
    output reg z
);
    always @(*) begin
        case ({x, y})
            2'b00: z = 1;
            2'b01: z = 0;
            2'b10: z = 0;
            2'b11: z = 1;
            default: z = 1'bx; // undefined case
        endcase
    end
endmodule

module top_module(
    input x,
    input y,
    output reg z
);
    always @(*) begin
        case ({x, y})
            2'b00: z = 1;
            2'b01: z = 0;
            2'b10: z = 0;
            2'b11: z = 1;
        endcase
    end
endmodule

module top_module(
    input x,
    input y,
    output reg z
);

    always @(*) begin
        case ({x, y})
            2'b00: z = 1;
            2'b01: z = 0;
            2'b10: z = 0;
            2'b11: z = 1;
            default: z = 0;
        endcase
    end

endmodule

module top_module(
    input x,
    input y,
    output reg z
);
    always @(*) begin
        case ({x, y})
            2'b00: z = 1; // 0ns to 20ns
            2'b01: z = 0; // 35ns to 40ns
            2'b10: z = 0; // 25ns to 30ns
            2'b11: z = (z == 0) ? 1 : 0; // 45ns to 50ns (toggle)
            default: z = 1;
        endcase
    end
endmodule

module top_module(
    input x,
    input y,
    output reg z
);

    always @(*) begin
        case ({x, y})
            2'b00: z = 1'b1; // For x=0, y=0
            2'b01: z = 1'b0; // For x=0, y=1
            2'b10: z = 1'b0; // For x=1, y=0
            2'b11: z = 1'b1; // For x=1, y=1
            default: z = 1'b0; // Default case
        endcase
    end

endmodule

module top_module(
	input x,
	input y,
	output reg z);

	always @(*) begin
		case (1)
			0: z = 1; // time 0-20ns
			1: begin
				if (x == 1 && y == 0) z = 0; // time 25-30ns
				else if (x == 0 && y == 1) z = 0; // time 35-40ns
				else if (x == 1 && y == 1) z = 1; // time 45-50ns
				else if (x == 0 && y == 1) begin
					if (y[1]) z = 0; // time 60-65ns
					else z = 1; // time 70-75ns
				end else z = 0; // default case
			end
		endcase
	end
endmodule

module top_module(
    input x,
    input y,
    output reg z
);
    always @(x or y) begin
        case ({x, y})
            2'b00: z = 1;
            2'b01: z = 0;
            2'b10: z = 0;
            2'b11: z = 1;
            default: z = 1;
        endcase
    end
endmodule

module top_module(
    input x,
    input y,
    output reg z
);
    always @(*) begin
        case ({x, y})
            2'b00: z = 1; // For x=0, y=0
            2'b01: z = 0; // For x=0, y=1
            2'b10: z = (z == 0) ? 0 : 1; // For x=1, y=0, maintain
            2'b11: z = 1; // For x=1, y=1
        endcase
    end
endmodule

module top_module(
	input x,
	input y,
	output reg z
);
	always @(x, y) begin
		case ({x, y})
			2'b00: z = 1;
			2'b01: z = 0;
			2'b10: z = 0;
			2'b11: z = 1;
			default: z = 1'bz;
		endcase
	end
endmodule

module top_module(
	input x,
	input y,
	output reg z
);

	reg [3:0] state;
	parameter S0 = 4'b0000, S1 = 4'b0001, S2 = 4'b0010, S3 = 4'b0011, S4 = 4'b0100, S5 = 4'b0101, S6 = 4'b0110, S7 = 4'b0111;

	always @(*) begin
		case (state)
			S0: begin
				z = 1; // 0ns to 20ns
				if (x) state = S1; else state = S0;
			end
			S1: begin
				z = 0; // 25ns to 30ns
				if (x) state = S1; else state = S2;
			end
			S2: begin
				z = 0; // 35ns to 40ns
				if (y) state = S3; else state = S2;
			end
			S3: begin
				z = 1; // 45ns to 50ns
				if (!y) state = S4; else state = S3;
			end
			S4: begin
				z = 0; // 55ns to 60ns
				if (y) state = S5; else state = S4;
			end
			S5: begin
				z = 0; // 65ns to 70ns
				if (x && y) state = S6; else state = S5;
			end
			S6: begin
				z = 1; // 70ns to 90ns
				if (!y) state = S7; else state = S6;
			end
			S7: begin
				z = 0; // 90ns and beyond
				if (x) state = S1; else state = S7;
			end
		endcase
	end

	initial begin
		state = S0;
	end
endmodule

module top_module(
    input x,
    input y,
    output reg z
);
    always @(*) begin
        case({x, y})
            2'b00: z = 1;
            2'b01: z = 0;
            2'b10: z = 0;
            2'b11: z = 1;
            default: z = 1; // This should not happen
        endcase
    end
endmodule

module top_module(
    input x,
    input y,
    output reg z
);
    always @(*) begin
        case ({x, y})
            2'b00: z = 1; // 0, 0 -> 1
            2'b01: z = 0; // 0, 1 -> 0
            2'b10: z = 0; // 1, 0 -> 0
            2'b11: z = 1; // 1, 1 -> 1
            default: z = 1; // Default case to maintain previous state
        endcase
    end
endmodule