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  1. or download this
    #! /usr/bin/perl
    use warnings ;
    ...
        print "'$key' => [$position{$key}[0],$position{$key}[1]],\n"
            if $position{$key};
    }
    
  2. or download this
    'a' => [0,0],
    'b' => [1,0],
    ...
    'n' => [1,3],
    'o' => [2,3],
    'p' => [3,3],
    
  3. or download this
    ($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
    }map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,