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>perl -wMstrict -le "my $s = join '', qw(ABCbb bCBAd ddCAC DDDAC ABBBC ABCDA ABCCC CCCAB); ... " 'ABCbbbCBAdddCACDDDACABBBCABCDAABCCCCCCAB' 'DDD' 'BBB' 'CCC' 'CCC'