input: Write a function to modify a given list into a dictionary and print the values of the dictionary. The function should take a list of integers as input and return a dictionary where each key is an integer from the list and the corresponding value is a string representation of that integer. If the list is empty, return an empty dictionary.
  
  assert modify_to_dict([1, 2, 3, 4]) == {1: 'one', 2: 'two', 3: 'three', 4: 'four'}
  assert modify_to_dict([]) == {}
output: def modify_to_dict(lst):
      num_to_word = {1: 'one', 2: 'two', 3: 'three', 4: 'four'}
      return {num: num_to_word.get(num, str(num)) for num in lst}