input: Write a function to convert a list of integers into a dictionary where the keys are the integers themselves and the values are their corresponding string representations. The function should then print the string values from the dictionary. If the input list is empty, the function should do nothing.
  
  assert convert_list_to_dict([1, 2, 3, 4]) == {'one', 'two', 'three', 'four'}
  assert convert_list_to_dict([5, 6, 7]) == {'five', 'six', 'seven'}
  assert convert_list_to_dict([]) == None
output: def convert_list_to_dict(lst):
      if not lst:
          return
      num_to_str = {1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five', 6: 'six', 7: 'seven'}
      result_dict = {num: num_to_str[num] for num in lst if num in num_to_str}
      for value in result_dict.values():
          print(value)