@1
MOV UP, DOWN

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

@6
MOV LEFT, ACC
SWP
MOV ACC, LEFT

@8
MOV UP, ACC
JGZ P
NEG
P: MOV ACC, RIGHT

@9
MOV 0, DOWN
MOV LEFT, NIL
L: MOV LEFT, ACC
SUB 9
JGZ O
MOV 0, DOWN
JMP L
O: MOV 1, DOWN
JMP L
