I'm not sure if I grabbed this early or not, but there are no specific questions
to answer on this file. If there is anything specific to answer for checkpoint 1 or
the overall submission, just let me know and I'm happy to resubmit.
As far as planning for numberwords, I think it'll be useful to convert the number
to a string right off the bat then just find the length and use that to determine
how many numbers we have (and whether it's negative) and what index each digit is
located in. It seems pretty straightforward, so I'm hoping the follow-through is
what I think it is.