input: Below is an instruction that describes a task. Write a response that appropriately completes the request.
  
  ### Instruction:
  Generate a Python program that takes a list of strings as input and prints the strings in alphabetical order.
  
  ### Input:
  ['cat', 'dog', 'apple', 'banana']
  
  ### Output:
  strings = ['cat', 'dog', 'apple', 'banana']
  
  strings.sort()
  
  for string in strings:
      print(string)
output:     strings = ['cat', 'dog', 'apple', 'banana']
  
  strings.sort()
  
  for string in strings:
      print(string)