@1
MOV UP, ACC
MOV ACC, RIGHT
NEG
MOV ACC, RIGHT

@2
MOV LEFT, NIL
MOV LEFT, ACC
MOV 0, DOWN
LOOP:
ADD LEFT
MOV ACC, DOWN
MOV LEFT, ACC
JMP LOOP

@6
START:
MOV UP, ACC
JGZ P
NEG
P:
MOV ACC, DOWN

@9
START:
MOV UP, ACC
SUB 10
JLZ Z
MOV 1, DOWN
JMP START
Z:
MOV 0, DOWN
