The obvious solution is too simple.
You should ask for the smallest numbers. That solution is also easy enough, so it shouldn't be a problem for most people.

Anyway, maybe the purpose of this problem is to teach people to use __int64. In that case simpler is better :)

Edited by author 22.02.2009 21:50

OMFG. :D

At first I solved it with about 50 strings of code.
But after AC I catcha the 5-strings solution. :D