http://digicc.com/fido/

 

It's more than likely some mathematical calculation. I've seen these before...

 

what if you picked 2222.

 

or 1001

 

i chose 1111 and it said my number was 9

obviously there are a select few that wont work

 

you can't repeat numbers ... no 1111's ... 1234, 4532, 3427, etc ...

 

You have a number:

XYZ

You mix it up:

ZXY

You subtract the smaller from the larger:

|ZXY-XYZ|

So you have:

|Z-X| |X-Y| |Y-Z| as your digits

You enter two, using those two and some simple math you can find the third. Nothing intense, just some simple algebra.

 

i got this in my head now...
give me any 3 numbers...i wont look at the page for the solution..ill get u ur answer

 

918 198

 

9?