Hi guys, Welcome to the Advanced Video Search Engine, and you are watching 전홍철 쌤 / 지문의 절반을 날려도 정답은 찍을 수 있다 (ㄹㅇ웃김). That video is uploaded by J름은 전홍철 at 2018-06-01T20:03:03-07:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [uFRIAj1doCg]