@0
S: MOV UP, ACC
L: SAV
JRO RIGHT
SUB RIGHT
JGZ P
SUB ACC
P: MOV ACC, RIGHT
SWP
JMP L

@1
L: MOV UP, ACC
JNZ N
MOV -2, LEFT
MOV ACC, DOWN
JMP L
N: MOV 1, LEFT
MOV ACC, LEFT
ADD LEFT
MOV ACC, DOWN

@2
MOV UP, DOWN

@4
L: MOV UP, ACC
JNZ N
MOV -2, RIGHT
MOV ACC, DOWN
JMP L
N: MOV 1, RIGHT
MOV ACC, RIGHT
ADD RIGHT
MOV ACC, DOWN

@5
S: MOV UP, ACC
L: SAV
JRO LEFT
SUB LEFT
JLZ P
SUB ACC
P: MOV ACC, LEFT
SWP
JMP L

@8
MOV UP, DOWN
