@1
MOV UP ACC
MOV ACC DOWN
MOV ACC RIGHT

@2
MOV LEFT ACC
MOV ACC DOWN
MOV ACC DOWN

@5
MOV UP ACC
MOV ACC DOWN
MOV ACC DOWN

@6
MOV UP ACC
MOV UP NIL
L:SAV
SUB UP
JLZ N
MOV UP ACC
JEZ E
SWP
JMP L
N:MOV UP ACC
JNZ L
E:SWP
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
MOV UP DOWN
