C569 Super Vision

"A total of 126 blue triangles!"

Hee Canghai's eyesight had always been good, and under his observation, the pattern on the blackboard could be seen clearly.

"Mr. Hai, do you have so many blue triangles? How come I only found 70 or so?"

Another A class member asked in disbelief. After all, in his opinion, the blue triangles on the blackboard were hard to believe. There's only about seventy