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  1. or download this
    my @letters = qw(
       red red red blue white yellow blue navy navy green white cars );
    ...
    
    print("$_ => $count{$_}\n")
       foreach sort { $count{$b} <=> $count{$a} } keys %count;
    
  2. or download this
    red => 3
    blue => 2
    ...
    cars => 1
    green => 1
    yellow => 1