input: Write a function to return two values from a Python function using a tuple. The function should return a string and an integer. If the input to the function is "ABC" and 123, it should return the string "ABC" and the integer 123.
  assert get_multi_values("ABC", 123)==("ABC", 123)
  assert get_multi_values("DEF", 456)==("DEF", 456)
  assert get_multi_values("GHI", 789)==("GHI", 789)
output: def get_multi_values(s, i):
      return (s, i)