Calligraphers write Spring Festival couplets and calligraphy of Chinese character "Blessing" at a supermarket in Nanjing, capital of east China's Jiangsu Province, Feb. 3, 2018. The supermarket invited some calligraphers to write free-of-charge calligraphies here Saturday, to welcome the Chinese Lunar New Year, which falls on Feb. 16 this year. (Xinhua/Sun Can)