ch'ngch'ng-pukdo ch'ungch'ng-pukto chhung-chheng north chungcheong bugdo chungcheongbuk-do chungchong-bukdo chusei-hoku chūsei north chūsei-hokudō east chhung-chheng north ch'ungch'ng province north chungcheong province north chungchong-do north chusei province north chūsei north tyusei ost-tsch-hung-tsch-hng puk chyun-chin-do severny chyun-chin-do tchoung-tsing tchyoung-tchyeng tyūsei hokudō