Largest int from concatenated ints

func maxnum(nums) {
    nums.sort {|x,y|  "#{y}#{x}" <=> "#{x}#{y}" };
}
 
[[54, 546, 548, 60], [1, 34, 3, 98, 9, 76, 45, 4]].each { |c|
    say maxnum(c).join.to_num;
}

Output:

6054854654
998764543431