Looking at this picture, I feel that there are a few places that are still not very clear. First of all, the area at the entrance is the color of the flower, which is the area of the controlled color. There may be no way to control it. After the control, it will be his flower. The area of redistribution of the middle group is that there is no way to control it efficiently, so it is more difficult to control. So how to solve this problem of taking a walk efficiently through Forest 8?