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  1. or download this
    perl -e "map {print qq($_ ) unless $_ =~/(2|4|5|6|8|0)$/ } @ARGV" 2 3 
    +5 7 11 13 17 19 23 29 37
    3 7 11 13 17 19 23 29 37
    
  2. or download this
    perl -e "map {print qq($_ ) unless $_ =~/\d[245680]$/ } @ARGV" 2 3 5 7
    + 11 13 17 19 23 29 37
    2 3 5 7 11 13 17 19 23 29 37
    
  3. or download this
    
    use strict;
    ...
    primes_opt_till_11  => 'primes_opt_till_11  (10000)',
     });
    
  4. or download this
    1..1
    ok 1 - same
    ...
    primes_skipper     33.5/s                --              -35%         
    +      -94%
    primes_original    51.4/s               53%                --         
    +      -90%
    primes_opt_till_11  519/s             1448%              909%         
    +        --