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[3:2], ^bin_in[2:1], ^bin_in[1:0]};
endmodule