11. Vector Concatenation

How do you plan to solve it?

/*Write your code here*/
module concat8_packer(
    input [3:0]A,
    input [1:0]B,
    input C,
    input 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