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[Bushido]

we are not in the school ...

[tru_power22]

2-4 hours of math my ass.

Try brute force.

Like, as in a program? Or as in Manuel?

[Aero]

Program obviously.

[weirdone2]

Brute force eh what if it's like 10digits or more. -.-' Besides the only language I have enough knowledge to make a brute force for it would be autoit and I don't think it would type fast enuf. :S

[Aero]

If you can figure out wc3's overflow system you can actually just reverse the process since you're given both the final 2 numbers.

If they only checked one number then whatever the second is would be a mystery.
Then, if the person trying to reverse it let that second number equal whatever they want, chances are they will run into incorrect characters or reals.

So, consider yourself lucky they gave you both values ^.^.
Now, it's just a matter of if you can figure out the overflow system and make a proggie to reverse it for you.