input: 
  def positive_feedback_loop(count: int) -> None:
      """ Modifies the given loop to add a positive feedback mechanism.
      After every iteration, the loop will print a message if it has completed
      the specified number of iterations.
      >>> positive_feedback_loop(10)
      hello
      hello
      hello
      hello
      hello
      hello
      hello
      hello
      hello
      hello
      You've got it!
      """
  
output:     for i in range(count):
          print("hello")
      print("You've got it!")