input: Write a function to sort and print out the elements of an array of integers. The function should take an array as input and return the sorted array.
  assert sort_and_print([17, 41, 5, 22, 54, 6, 29, 3, 13])==[3, 5, 6, 13, 17, 22, 29, 41, 54]
  assert sort_and_print([5, 3, 8, 1, 2])==[1, 2, 3, 5, 8]
  assert sort_and_print([])==[]
  assert sort_and_print([10])==[10]
  assert sort_and_print([9, 8, 7, 6, 5, 4, 3, 2, 1])==[1, 2, 3, 4, 5, 6, 7, 8, 9]
output: def sort_and_print(arr):
      return sorted(arr)