input: Write a function to demonstrate how to return multiple values from a Python function.
  assert get_multi_values()==("ABC", 123)
  assert get_multi_values()==("ABC", 123)
  assert get_multi_values()==("ABC", 123)
  assert get_multi_values()==("ABC", 123)
  assert get_multi_values()==("ABC", 123)
output: def get_multi_values():
      return "ABC", 123