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Problem B: 排队

Memory Limit：128 MB Time Limit：5.000 S
Judge Style：Text Compare Creator：
Submit：9 Solved：5
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Description




Sample Input Copy

Sample Output Copy

HINT

题解：https://www.bilibili.com/video/BV1iB4y1b7Vx/?spm_id_from=333.788.recommend_more_video.1&vd_source=ed609f9463861996afb742d2bd8b5a46

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