judo , Thumbs up . 柔道，豎起大拇指

Alexei Druzhinin / pool via AP

AP
PhotoBlog - Black belt Putin gives a judo lesson to young students
http://photoblog.msnbc.msn.com/_news/2012/01/24/10225132-black-belt-putin-gives-a-judo-lesson-to-young-students