Draw a capital U with a black pen that is 2 pixels thick. The letter is 40 pixels wide and 80 pixels high.

The turtle starts at the center of the canvas, facing east. This is the bottom-left corner of the letter.

1. Turn left and move forward 80 pixels to draw the left side.
2. Lift the pen and move to (40, 80), the top of the right side.
3. Put the pen down. Turn right 180 degrees and move forward 80 pixels.
4. Turn right 90 degrees and move forward 40 pixels to draw the flat bottom.