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  1. or download this
    #!c:\perl\bin\perl.exe -w
    
    ...
    {
        print "$b[$x] = $a[$b[$x]]{total}\n";
    }
    
  2. or download this
    5 = 20
    4 = 30
    ...
    1 = 10
    Use of uninitialized value in concatenation (.) or ...
    0 =
    
  3. or download this
    2 = 50
    3 = 40
    4 = 30
    5 = 20
    1 = 10