Begin forwarded message:

> From: Yoan Blanc <yoan / dosimple.ch>
> Date: January 18, 2008 1:18:37 PM CST
> To: submission / rubyquiz.com
> Subject: Please Forward: Ruby Quiz Submission
>
> thanks.
> #!/usr/bin/ruby
> # author: Yoan Blanc <yoan at dosimple.ch>
> # revision: 20080118
>
> text = STDIN.read
>
> (text.length/2).downto 1 do |l|
> 	match = Regexp.new("(.{#{l}})\\1").match(text)
> 	if match
> 		puts text[match.offset(1)[0]..(match.offset(1)[1]-1)]
> 		break
> 	end
> end