@1
MOV ACC, RIGHT
SAV
SUB UP
JLZ P
SWP
SAV
P: MOV ACC, RIGHT
SWP
ADD 8

@2
MOV LEFT, ACC
MOV ACC, DOWN
SUB UP
JLZ K
MOV LEFT, NIL
MOV ACC, DOWN
JMP E
K: MOV LEFT, DOWN
E:

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

@7
MOV UP, DOWN
