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  1. or download this
    #!/usr/bin/perl 

...

print Dumper \%h;
  2. or download this
    $VAR1 = {
          '4' => ' ',
...
          '2' => ' ',
          '5' => undef
        };
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    s**lil*;  $*=join'',sort split q**;  s;.*;grr; &&s+(.(.)).+$2$1+; $; =
qq-$_-;s,.*,ahc,;$,.=chop for split q,,,reverse;print for($,,$;,$*,$/)