68. 4-bit Comparator

How do you plan to solve it?

/*Write your code here*/
module maxmin4(
    input [3:0]a,
    input [3:0]b,
    input [3:0]c,
    input [3:0]d,
    output  [3:0]max,
    output [3:0]min
);
wire [3:0]max01;
wire [3:0]max23;
wire [3:0]min01;
wire [3:0]min23;

    assign max01=(a>b)?a:b;
    assign min01=(a<b)?a:b;
    assign max23=(c>d)?c:d;
    assign min23=(c<d)?c:d;
    assign max=(max01>max23)?max01:max23;
    assign min=(min01<min23)?min01:min23;
endmodule