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  1. or download this
    $table=[[1,2,3],[a,b,d],[A,D,C]];
  2. or download this
    @answers = grep { $_->[0] =~ /a/i && $_->[2] =~ /C/} @$table;
  3. or download this
    %search_elements=(0=>a,2=>C);

...
    return 1; # ok all match
    
}