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There are 5 locks and 5 keys on a desk.8964 copyright protection252ＰＥＮＡＮＡE6PD8P7eLy 維尼

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At most, you need to try how many times to make a pair of all the locks and keys ?8964 copyright protection252ＰＥＮＡＮＡryLW482xun 維尼

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