17. Binary to Gray Code Converter

How do you plan to solve it?

/*Write your code here*/
module bin2gray4(
    input [3:0] bin_in,
    output [3:0] gray_out
);

    assign gray_out = {
        bin_in[3],
        bin_in[3] ^ bin_in[2],
        bin_in[2] ^ bin_in[1],
        bin_in[1] ^ bin_in[0]
    };

endmodule