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There are 5 locks and 5 keys on a desk.8964 copyright protection237ＰＥＮＡＮＡeDw6tnLkFE 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 protection237ＰＥＮＡＮＡk3qiCa9ehv 維尼

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