@1
MOV ACC RIGHT
SAV
SUB UP
MOV ACC RIGHT
SWP
ADD 8

@2
MOV LEFT ACC
SUB UP
MOV ACC DOWN
MOV LEFT DOWN

@5
MOV UP ACC
JLZ N
MOV UP NIL
JMP O
N: MOV UP ACC
JLZ O
MOV 999 ACC
O: MOV ACC DOWN

@7
SAV
SUB UP
JLZ Z
MOV ACC DOWN
JMP R
Z: MOV 0 DOWN
R: SWP
ADD 8
