@1
MOV UP, RIGHT
MOV UP, DOWN

@2
MOV LEFT, ACC
SUB 4
SAV
ADD 5
LP: SWP
ADD 4
SWP
SUB 16
JGZ LP
MOV ACC, DOWN
SWP
MOV ACC, DOWN

@5
MOV UP, ACC
SUB 4
SAV
ADD 5
LP: SWP
ADD 4
SWP
SUB 16
JGZ LP
MOV ACC, DOWN
SWP
MOV ACC, DOWN

@6
MOV UP, ACC
ADD 8
SAV
MOV UP, ACC
SWP
JGZ Y
SWP
JMP O
Y: SWP
ADD 2
O: MOV ACC, DOWN

@8
MOV UP, ACC
ADD 8
SAV
MOV UP, ACC
SWP
JGZ Y
SWP
JMP O
Y: SWP
ADD 2
O: MOV ACC, RIGHT

@9
MOV UP, DOWN
MOV LEFT, DOWN
