@4
MOV ACC, RIGHT
ADD 1

@5
MOV LEFT, DOWN
MOV 10, ACC
M: MOV 3, DOWN
SUB 1
JNZ M

@8
MOV 0, RIGHT
MOV 10, ACC
M: MOV 3, RIGHT
SUB 1
JNZ M

@9
MOV LEFT, DOWN
MOV UP, DOWN
MOV RIGHT, DOWN

@10
MOV 10, ACC
M: MOV 3, LEFT
SUB 1
JNZ M
MOV -1, LEFT
