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;

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

endmodule