Draw a capital Z 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’s space.
(40, 0), the bottom-right corner.(0, 80), the top-left corner.(40, 80), the top-right corner.(0, 0), the bottom-left corner.