Fifth grader Yan Jiashuo tries to remember numbers on blackboard at an elementary school in Jinan, East China’s Shandong Province, Dec. 21, 2015. Yan recalled 1,080 numbers and 646 playing cards in sequence to set a new record with 3,000 competition points overall in an hour during a world contest in Chengdu, Sichuan Province. The 10-year-old girl is the youngest receiver of International Master of Memory. (Photo/Xinhua)
