11. Vector Concatenation

How do you plan to solve it?

module concat8_packer(
                input [3:0] A,
                input [1:0] B,
                input C,
                input D,

                output [7:0] OUT
            );

            assign OUT[7:4] = A;
            assign OUT[3:2] = B;
            assign OUT[1] = ~C;
            assign OUT[0] = D;
endmodule