Create a spiral by carving concentric circles.
Shredder breaks down your shavings to produce paper.
When the boxes are filled with papers of their color, they are packed and a new box arrives.
To complete the boxes you need to carve rings in the correct color.
Papers of different colors accumulate on the conveyor.
If the conveyor is full, you will fail.
By carving rings in the right colors, become a master of spirals.