68. 4-bit Comparator

How do you plan to solve it?

module maxmin4(input [3:0] a,b,c,d,output [3:0] max,min);
    assign max = (a>b)?((c>d)?(a>c?a:c):(a>d)?a:d):((c>d)?(b>c?b:c):(b>d)?b:d);
    assign min = (a<b)?((c<d)?(a<c?a:c):(a<d)?a:d):((c<d)?(b<c?b:c):(b<d)?b:d);
endmodule