@1
R: MOV UP, ACC
JEZ Z
MOV 0, ACC
SAV
MOV 0, DOWN
JMP R
Z: SWP
ADD 1
SAV
SUB 3
JLZ LOW
MOV 1, DOWN
JMP R
LOW: MOV 0, DOWN

@4
MOV UP, DOWN

@8
MOV UP, RIGHT

@9
MOV LEFT, DOWN
