The specific drawing method is as follows (from the 9th meeting, 1 1 has been taken as an example).
1. Now there are 1 1 points on the plane. If you want to look good, put them evenly on the circumference.
2. Start from any point, draw clockwise, and connect to the third point behind (that is, every two points are not connected) until you return to the initial point (1, 4, 7, 10, 2, 5, 8, 1 1, 3, 6, 9.
3. Draw a beautiful figure!