Chóngzuǒ (; Zhuang: Cungzcoj ) is a prefecture-level city in the south of Guangxi Zhuang Autonomous Region along the Sino-Vietnamese border.
 It is home to one of China's largest Zhuang populations.
Yiyang () is a prefecture-level city on the Zi River in Hunan province, People's Republic of China, straddling Lake Dongting and bordering Hubei to the north.
 According to the 2010 Census, Yiyang has a population of 4,313,084 inhabitants residing in an area of 12,144 km2 .
 The previous census was in 2000 when it was recorded there were 4,309,143 inhabitants.

Question: What country are both Yiyang and Chongzuo located in?
Answer: China