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#! perl -w
use strict;
...
              grepped      => \&grepped,
             };

__END__
...
hash         9.74/s      232%          48%      47%        --       -0
+%      -4%
hash_lret    9.77/s      233%          48%      48%        0%        -
+-      -3%
grepped      10.1/s      244%          53%      53%        4%        3
+%       --