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The six-day International Congress of Chinese Mathematicians (ICCM) is about to end in east China's Nanjing City. The event brought together experts from home and abroad to discuss developments in and the direction for both pure and applied mathematics. This year, over 300 lectures and seminars were held. CGTN's Wu Bin talks with Shing-Tung Yau, a renowned mathematician and president of ICCM.