@1
MOV UP, RIGHT

@2
MOV ACC, DOWN
SAV
SUB UP
JLZ K
MOV LEFT, NIL
JMP M
K: SWP
SAV
SUB LEFT
JLZ M
SWP
SAV
M: MOV ACC, DOWN
SWP
ADD 8

@5
MOV UP, ACC
SUB UP
MOV ACC, DOWN

@7
MOV UP, DOWN
