input: from typing import Tuple
  
  def swap_values(x: int, y: int) -> Tuple[int, int]:
      """ Swap the values of two variables.
      >>> swap_values(5, 10)
      (10, 5)
      >>> swap_values(100, 200)
      (200, 100)
      """
      x, y = y, x
      return x, y
output:     x, y = y, x
      return x, y