Task 1. "This is for you to see a bit too early,"- said Baba Yaga to her 33 students and commanded: "Close your eyes!" The right eye was closed by all the boys and a third of the girls. The left eye was closed by all the girls and a third of the boys. How many students still saw what they were not supposed to see yet? [3 points] (A. V. Shapovalov)
Answer: 22 students.

Solution: What is seen is still too early, two-thirds of the girls saw with their right eye, and two-thirds of the boys saw with their left eye. In total, then, one eye was not closed by two-thirds of all students - 22 people.