11. Vector Concatenation

How do you plan to solve it?

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