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Each of the 11 letters A, H, I, M, O, T,...

Each of the 11 letters A, H, I, M, O, T, U, V, (W, X and Z appears same when looked at in a mirror. They are called symmetric letters.Other letters in the alphabet are asymmetric letters. How many three letter computer passwords can be formed (no repetition allowed)with at least one symmetric letter?

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