Chinese artists perform at an art show held to celebrate the "San Yue San" festival in Hanoi, capital of Vietnam, April 18, 2018. The festival is shared by both Vietnam and China and climaxes on the third day of the third lunar month. (Xinhua/Wang Di)

Vietnamese artists perform at an art show held to celebrate the "San Yue San" festival in Hanoi, capital of Vietnam, April 18, 2018. The festival is shared by both Vietnam and China and climaxes on the third day of the third lunar month. (Xinhua/Wang Di)