C724 Shocking

"That's right. Take a look and see if my calculations are correct or not. The calculation for this question is very big. I have calculated many of the steps with my heart, and there is no formula for it." Zheng Hao said to Qian Kaiyuan.

"Alright, let me take a look!"

Qian Kaiyuan began to seriously watch Zheng Hao's steps to solve the problem.

The more he looked at it