input: 
  def positive_feedback_loop(iterations: int) -> None:
      """ Design a positive feedback loop for the given python program. It should print
      "hello" the specified number of times and print "You've got it!" when the loop is
      complete.
      >>> positive_feedback_loop(10)
      hello
      hello
      hello
      hello
      hello
      hello
      hello
      hello
      hello
      hello
      You've got it!
      """
  
output:     for _ in range(iterations):
          print("hello")
      print("You've got it!")