input: Write a function that takes a list of strings as input and prints the strings in alphabetical order.
  def print_alphabetical_order(strings):
      strings.sort()
      for string in strings:
          print(string)
  
  assert print_alphabetical_order(['cat', 'dog', 'apple', 'banana'])==None
  assert print_alphabetical_order(['zebra', 'lion', 'giraffe'])==None
output: def print_alphabetical_order(strings):
      strings.sort()
      for string in strings:
          print(string)