Draw a capital C with a black pen that is 2 pixels thick. The letter is 40 pixels wide and 80 pixels high. Its opening faces right.

The turtle starts at the center of the canvas, facing east. This is the point (0, 20) on the left edge of the letter. Draw from here.

1. Turn left and move forward 40 pixels.
2. Draw to (20, 80), then to (40, 60).
3. Lift the pen and move to (40, 20). Put the pen down.
4. Draw to (20, 0), then back to (0, 20).