input: Write a function to print a list of strings in alphabetical order. The function should sort the list and then print each string in the sorted list.
  assert sort_strings(['cat', 'dog', 'apple', 'banana']) == None
  assert sort_strings(['zebra', 'elephant', 'ant', 'bear']) == None
  assert sort_strings(['apple', 'banana', 'cat', 'dog']) == None
  assert sort_strings(['bat', 'ball', 'book', 'bike']) == None
  assert sort_strings([]) == None
output: def sort_strings(lst):
      sorted_lst = sorted(lst)
      for string in sorted_lst:
          print(string)