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my $string = "It's a cat and mouse game."; $string =~ s/(.)/$1 x (1 + rand(3))/ges; ... $string = "It's a cat and mouse game."; $string =~ s/([A-Za-z])/$1 x (1 + rand(3))/ges; print "$string\n";
IIIt'''s a cccat annddd mmoooussee gaammeee... IIItt'sss aa cccaaattt and mmoouusee ggaame.