11. Vector Concatenation

How do you plan to solve it?

/*Write your code here*/
module concat8_packer(A,B,C,D,OUT);
    input [3:0] A;
    input [1:0] B;
    input C, D;
    output [7:0] OUT;
    wire w1;

    assign w1 = ~C;

    assign OUT = {A,B,w1,D};
endmodule