He Xinghan is a senior two student in Lanzhou No.1 Middle School in Gansu, and the second is Hu Zengyu, a senior three student in Lanzhou No.1 Middle School in Gansu.
International Mathematical Olympiad, IMO for short. The name of Mathematical Olympics comes from the Soviet Union, which links sports competitions, ancient Greece, the birthplace of science, and mathematical competitions. The World Olympic Mathematical Competition Association was established in New Jersey, USA. In order to stimulate the world's young people's mathematical talent, arouse their interest in mathematics, and explore the reserve army of scientific and technological talents.