The second prize winner of the 35th China Mathematical Olympiad, the National Middle School Mathematics Winter Camp, is a higher-level mathematics competition based on the National High School Mathematics League. 1985, initiated by Peking University, Nankai University, Fudan University and China University of Science and Technology, chinese mathematical society decided to hold the national middle school students' mathematics winter camp every year 1 month from 1986, later called China Mathematical Olympics (CMO).