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{"workbook":{"problemsBrief":"{}","joined":false,"groups":{}},"managingGroups":{},"author":"SDNUACM","updateTime":1696852229000,"title":"SDNU","dislikeCnt":0,"content":"[problem:https://www.luogu.com.cn/problem/P1000]\n\n","threadId":172239,"likeCnt":0,"createTime":1696851979000,"isWorkbook":true,"viewCnt":165,"openness":2,"fav":false,"id":4152,"trustable":false}