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cmpthese(10000, { 'orig' => sub { foreach my $x ( 0..9, 'a'..'v', 'A'..'V' ) { $x = M +yMod::MapChar($x); }}, 'new' => sub { foreach my $x ( 0..9, 'a'..'v', 'A'..'V' ) { $x = M +yMod::MapChar2($x); }}, } );