input: from typing import Tuple
  
  def add_and_print(a: int, b: int) -> None:
      """ Adds two numbers together and prints the result.
      >>> add_and_print(5, 7)
      12
      >>> add_and_print(-3, 3)
      0
      """
      sum = a + b
      print(sum)
output:     sum = a + b
      print(sum)