11. Vector Concatenation

How do you plan to solve it?

module concat8_packer(
 input [3:0]A ,
 input [1:0]B,
 input C, D,
 output [7:0]OUT
 ); 
assign OUT[7:4]  = A;
assign OUT[3:2]  = B;
assign OUT[1] = ~C;
assign OUT[0] = D;
 endmodule