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From: KFL@AI.AI.MIT.EDU.UUCP
Newsgroups: comp.ai.digest
Subject: S and P Puzzle
Message-ID: <248007.870828.KFL@AI.AI.MIT.EDU>
Date: Fri, 28-Aug-87 22:58:12 EDT
Article-I.D.: AI.248007.870828.KFL
Posted: Fri Aug 28 22:58:12 1987
Date-Received: Thu, 3-Sep-87 06:12:40 EDT
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Approved: ailist@stripe.sri.com

I first saw it in November 1978, in a slightly different form.

								...Keith