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Sorry for mailing this article, I've obviously made a typo (168!=186) that's the price for being up all night and doing some "quick" checks before you go to bed... -Herbert Rosmanith
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\ / \/ (__) /\ (oo) O O _\/_ // * ( ) // \ (\\ // \( \\ ) ( \\ ) /\ ___[\______/^^^^^^^\__/) o-)__ |\__[=======______//________)__\ \|_______________//____________| ||| || //|| ||| ||| || @.|| ||| || \/ .\/ ||
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