Reflect on Exercise $1$

In this exercise, you created a while$-$loop that repeats so long as the user gives invalid input. So if you have a particularly stubborn user, the program will run forever. Sometimes that is not what you want. If the user is being particularly problematic, you may just want to shut down after a certain number of tries. But you want to do that without penalizing users who get it right on the first try.

How could you modify your while$-$loop to limit the number of tries?