input: Write a python function to sort a list of integers.
  assert sort_list([3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5]) == [1, 1, 2, 3, 3, 4, 5, 5, 5, 6, 9]
  assert sort_list([10, 20, 5, 3, 9, 8]) == [3, 5, 8, 9, 10, 20]
  assert sort_list([7, 7, 7, 7, 7, 7]) == [7, 7, 7, 7, 7, 7]
output: def sort_list(lst):
      return sorted(lst)