What extreme operations have you seen in the exam?

There was a college classmate, a woman, who cheated in every exam. Look at the plane, but it is not soft to copy, and the cheat sheet is quite standard. The long piece of paper was folded back and forth into a small tofu block with many words on it. One exam happened to meet one of the four famous arrests in the department, and she just caught up. As a result, the girl talked confidently with the teacher, which was really convincing.