@1
MOV UP, DOWN

@5
MOV UP, ACC
MOV ACC, DOWN
MOV ACC, RIGHT
MOV ACC, DOWN

@6
MOV LEFT, ACC
MOV ACC, DOWN
JNZ S
SUB 999
MOV ACC, DOWN
S: MOV ACC, DOWN

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