input: 
  def positive_feedback_loop(iterations: int) -> None:
      """Modify the given python program to include a positive feedback loop.
      The program should print "hello" a specified number of times and then
      print "You've got it!" when the iterations are complete.
      >>> positive_feedback_loop(10)
      hello
      hello
      hello
      hello
      hello
      hello
      hello
      hello
      hello
      hello
      You've got it!
      """
      for i in range(iterations):
          print("hello")
          i += 1
          if i == iterations:
              print("You've got it!")
  
output:     for i in range(iterations):
          print("hello")
      print("You've got it!")