Resetting Arduino after pressing the buttons 16 times

@aarg

Yes, this is for an school assignment (sorry for not reacting to your question) that 'something' is that it's counting past 16 without not resetting the Arduino automatically. You mentioned how I'll see if my Arduino is resetting. The way I'm trying to do it is let an message pop up on the serial monitor that let's me know that the Arduino is going to reset.