From: Eric Christopherson <echristopherson@...>
Date: 2012-08-01T04:45:04+09:00
Subject: Re: rubeque: Unidentified X Object

On Tue, Jul 31, 2012 at 1:53 PM, Jingjing Duan <lists@ruby-forum.com> wrote:
> Couldn't figure out how to solve this puzzle. Anyone?
>
> http://rubeque.com/problems/unidentified-x-object

The name of the puzzle is a clue; think of informal names you've seen
for some of the Ruby operators.