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Sergei Naidin of Russia competes during the parallel bars final of artistic gymnasitcs at the 2018 Summer Youth Olympic Games in Buenos Aires, Argentina on Oct. 15, 2018. (Xinhua/He Changshan)
Sergei Naidin of Russia competes during the parallel bars final of artistic gymnasitcs at the 2018 Summer Youth Olympic Games in Buenos Aires, Argentina on Oct. 15, 2018. (Xinhua/He Changshan)