68. 4-bit Comparator

How do you plan to solve it?

/*Write your code here*/
module maxmin4(input [3:0]a , b , c , d , output [3:0]max ,min );
 wire [3:0]max1=(a>b)?a:b;
 wire [3:0]min1=(a>b)?b:a;

    wire [3:0]max2=(c>d)?c:d;
    wire [3:0]min2=(c>d)?d:c;

assign max=(max1>max2)?max1:max2;
assign min=(min1>min2)?min2:min1;
endmodule