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16/C(52,13) - 2*72/[C(52,13)*C(39,13)] +8*24/[C(52,13)*C(39,13)*C(26,13)]
16/C(52,13) - 2*72/[C(52,13)*C(39,13)] +8*24/[C(52,13)*C(39,13)*C(26,13)]
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