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(11 choose 5) * 5! * 6! - 2! * (9 choose 3) * 4! * 6! - 2! * (9 choose 4) * 5! * 5!
(11 choose 5) * 5! * 6! - 2! * (9 choose 3) * 4! * 6! - 2! * (9 choose 4) * 5! * 5!
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