[DeTomaso] NPC Whatsoever: Mind Game

[MikeLDrew at aol.com]

In a message dated 10/26/07 5:59:46 PM, pantera928 at bellsouth.net writes:


> Very simple. All of the possible numbers that you can come up with from
> doing this addition and subtraction have the same symbol. That symbol
> changes each time you do it but all possible numbers will always have the
> same symbol.
> 

And they are all multiples of 9.   9, 18, 27 etc.   It's simply the way the 
algorithm is designed; no matter what initial number you choose, by performing 
the steps you will wind up with an answer that is a multiple of 9.

Very clever.

Mike


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