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{"workbook":{"problemsBrief":"{}","joined":false,"groups":{}},"managingGroups":{},"author":"yanhy","updateTime":1711702007000,"title":"11","dislikeCnt":0,"content":"[problem:CF-1A]","threadId":188293,"likeCnt":0,"createTime":1711701730000,"isWorkbook":true,"viewCnt":25,"openness":2,"fav":false,"id":4771,"trustable":false}