input: Write a function to find the maximum element in a list.
  assert find_max_element([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]) == 10
  assert find_max_element([10, 20, 45, 67, 84, 93]) == 93
  assert find_max_element([5, 7, 9, 8, 6, 4, 3]) == 9
output: def find_max_element(lst):
      return max(lst)