input: from typing import List
  
  
  def sort_and_print(arr: List[int]) -> None:
      """ Sort and print out the elements of a given array of integers.
      >>> sort_and_print([17, 41, 5, 22, 54, 6, 29, 3, 13])
      [3, 5, 6, 13, 17, 22, 29, 41, 54]
      """
output:     arr.sort()
      print(arr)