@1
MOV UP, DOWN

@5
MOV UP, ACC
MOV ACC, DOWN
MOV ACC, RIGHT
MOV ACC, DOWN
JNZ S
SUB 999
MOV ACC, RIGHT
S: MOV ACC, RIGHT

@6
L: SUB LEFT
JLZ N
ADD LEFT
JGZ L
ADD 999
MOV ACC, DOWN
N: MOV LEFT, ACC
JMP L

@8
MOV 999, ACC
L: SUB UP
JGZ N
ADD UP
JMP L
N: SAV
MOV UP, ACC
JNZ L
SWP
MOV ACC, DOWN

@9
MOV UP, DOWN
