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A ||| Adam ||| 1,2,3,4,5 B ||| Bob ||| 1,2,3,4,5 ... Carl ||| C ||| 3,2,1,4,5 Bruce ||| B ||| 3,2,1,4,5 C ||| Cheryl ||| 1,2,3,4,5
%hash = ( A => [ 'Adam' ], B => [ 'Bob', 'Brian', 'Bruce' ], C => [ 'Carl', 'Cheryl' ]);
letter names ------------------------ ... B Bruce C Carl C Cheryl