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