C15 Compliments

"How could this be?"

"There's no way I heard that right!"

"Tang Haodong is always at the bottom in math. How on earth did he shoot up to the top of the class?"

Skeptical murmurs rippled through the room.

"Silence!" Xu Guoqiang gestured for quiet. "Folks, I'll admit, when I first saw these results, I had my doubts about Tang Haodong's scores, just like you