>> Where does 109 89 and 91 come from?
>
> Should have tested before, Matt is right.
>
> Say the solution is x, y and z,
>then x+y= z and 100x + 10y +10 z + 100 y + 10x + z = 100 z +10y + x
>
>I ran my solution but could not have any result. That is because there
>are so many other possibilities that I do not check. There goes my no
>nomination for thouroughness I guess.
>
It looked like a "diaphantine" equation. I tried to derive such myself, but quickly discovered that creating/solving a diaphantine was more difficult than just programming a little bit (s). BTW, I used 6 FOR loops to solve it...