@1
MOV UP RIGHT

@2
MOV UP ACC
SUB DOWN
JGZ N
MOV LEFT NIL
MOV DOWN NIL
JMP O
N: MOV LEFT ACC
SUB DOWN
JGZ O
MOV -999 ACC
O: MOV ACC DOWN

@5
MOV ACC UP
MOV ACC UP
MOV ACC DOWN
ADD 8
MOV UP DOWN

@7
MOV UP ACC
ADD UP
JGZ O
MOV 0 ACC
O: MOV ACC DOWN
