CS2121 lab exercise 1 part a9 - hint
This is obviously related to
part a2,
but requires a significantly more complex answer
- you should also look back at
part a7.
Try thinking about the problem again.
Start by thinking about what
you want to achieve and how you might go about achieving it,
even if you don't know exactly how to write it down.
If you are still stuck, here are some more
hints.