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There are 5 locks and 5 keys on a desk.8964 copyright protection218ＰＥＮＡＮＡY6jlcQmMY0 維尼

Each key can only open a lock.8964 copyright protection218ＰＥＮＡＮＡTlUg7jYn9Y 維尼

At most, you need to try how many times to make a pair of all the locks and keys ?8964 copyright protection218ＰＥＮＡＮＡLLW5xerOCW 維尼

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222Please respect copyright.ＰＥＮＡＮＡ0UidVaBxYd
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222Please respect copyright.ＰＥＮＡＮＡl5BKttiMm0
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​222Please respect copyright.ＰＥＮＡＮＡPCoRJ9K7hd
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