An Wen and Yu Yuan both graduated from high school, one was first in liberal arts and the other was first in science, and their names were always mentioned in the same sentence by others. But because one's classroom is in the front building and the other's classroom is in the back building. One is a day student and the other lives on campus. They have not seen each other once in three years. It's possible that I've met him, but I don't know that the other person is another number one with the same name as myself...