11. Vector Concatenation

How do you plan to solve it?

module concat8_packer (
    input [4:0] A,
    input [1:0] B,
    input [0:0] 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