[Tutor] A small math puzzle [recreational Python]

[Danny Yoo]

On Mon, 29 Apr 2002, Lloyd Hugh Allen wrote:

> Oops. Wrong puzzle. Now I feel sheepish. Seems related though (and it's
> how I had remembered the puzzle until I reread my own post).
>
> Sorry 'bout that.

Don't worry about it; I think this problem is really subtle.  It has this
disguise that makes it look trivial, but I still don't know how to solve
it.  I must find time to read that book on Combinatorial Math that's
sitting on my bookshelf.