C80 He Was Unconvinced

"Holy smokes! Prof. Xu Wen? A five-time Mathematical Olympiad champion! I've heard that back in the day, questions that stumped everyone for over eight hours, he cracked in less than two and aced the test!"

"Incredible! It's hard to say who's stronger, Zheng Minghao or Prof. Xu Wen."

"I'd bet on Mr. Xu Wen being the stronger one. Five-time champion! Plus, rumor has it he's a jack-of-all-trades