Seems to me that you could also use a Matrix, where the letters are represented by their chr_code, missing fields simply filled with zeros, than you have quite comfortable access to the data stored as well. But it's just a thaught I couldn't stop from crossing through my head :-))
Have a nice day
All decision is left to your taste

In reply to RE: Sort of a permutation by little
in thread Sort of a permutation by KM

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