Raj Sahae wrote:
> My second ever rubyquiz submission, so be nice.
> Sorry if the submission is a little early (by about an hour and a half), 
> but I won't be around a comp tomorrow.
> 
> Raj Sahae
> 

I'll wait with my solution for a further hour ;) but a comment to your 
solution:
try out: ruby ccc.rb 5508 0412 3456 7893
it should show: Diners Club US & Canada or Mastercard
but shows just Mastercaards

-- 
greets
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  one must still have chaos in oneself to be able to give birth to a 
dancing star