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