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#! perl use Modern::Perl; ... ('a' x 100) =~ /(?<match>(??{'(.)' x 100}))/; say $+{match};
12:28 >perl 504_SoPW.pl aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 12:28 >