4. Remove the largest element from the set, s. Assume the set is not empty. When s=set('0123456789abcdef), your code should produce this set { 'O', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c','d', 'e'}. Do this question without using Python's built in max() function for sets