Input (grade 13): Chun Doo-hwan (also transliterated as Jeon Du-hwan; born January 18, 1931) is a retired former ROK Army general who served as President of South Korea from 1980 to 1988.
Output (grade 10): Chun Doo-hwan (born 18 January, 1931) was a Korean military officer and the President of South Korea from 1980 to 1988.