[[20,20,20,0], [20,40,20,0], [40,40,20,0], [40,20,20,0], [40,20,0,0], [40,40,0,0], [20,40,0,0], [20,20,0,0], [20,20,20,20], [20,40,20,20], [40,40,20,20], [40,20,20,20], [40,20,0,20], [40,40,0,20], [20,40,0,20], [20,20,0,20]]
Draw!