target rect (20,10)-(60,40) fill (20,10)-(60,20) [0,0],[-,1] fill (20,20)-(60,40) [0,1],[-,2] fill (20,40)-(20,50) [0,3],[0,1] string "0a" atpoint: (20,10) [0,0] fill: black 0 a string "b1" atpoint: (20,20) [0,1] fill: black b 1 string "cd2" atpoint: (20,30) [0,2] fill: black c d 2 blit (20,30)-(60,40) [0,2],[-,1], to (20,10)-(60,20) [0,0],[-,1] blit (20,40)-(60,40) [0,3],[-,0], to (20,20)-(60,20) [0,1],[-,0] fill (20,20)-(60,30) [0,1],[-,1] fill (20,30)-(60,40) [0,2],[-,1] fill (20,40)-(20,50) [0,3],[0,1]