For a word with 3 letters, there are 6 possible arrangements: ABC, ACB, BAC, BCA, CAB, CBA.
For a word with 4 letters, there are 24 possible arrangements: ABCD, ABDC, ACBD, ACDB, ADBC, ADCB, BACD, BADC, BCAD, BCDA, BDAC, BDCA, CABD, CADB, CBAD, CBDA, CDAB, CDBA,
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