Just need to store digits 1-9, 10-90 (in multiples of 10), and store hundred thousand million

how does the input even work?

I love this!!!

If it fails due to it taking too long you need to think of the problem differently. It took me a bit however it is much more simple than you think.

I never knew char's worked like this, learn something new everyday.

Wait im confused, this probably a dumb question but where do you access the alphabet in this?

This is what happens when you don't know all the neat tricks that come with c#. If only i knew that String constructors existed.