3. (8 points) Seven students play the game of passing the flower under the guidance of their teacher. Every time the teacher knocks, the students pass the flower to the next student in a clockwise direction, for example, student 1 passes to student 2, student 2 passes to student 3, ..., student 7 passes to student 1. So, when the teacher knocks the 50th time, and the students complete the 50th pass, the flower will be in the hands of student $\qquad$.
【Solution】Solution: According to the problem:
1 passes to 2 is the first pass. 2 passes to 3 is the second, ..., 7 passes to 1 is the seventh. The cycle number is 7. Based on $50 \div 7=7 \cdots 1$.

The last pass is from 1 to 2.
Therefore, the answer is: 2.