@0
MOV UP, ACC
MOV ACC, RIGHT
MOV ACC, DOWN

@1
S: MOV UP, ACC
JGZ O
MOV LEFT, DOWN
MOV UP, ACC
JGZ O
MOV LEFT, DOWN
JMP S
O: MOV LEFT, NIL
MOV ACC, DOWN

@3
S: MOV UP, ACC
JGZ O
MOV RIGHT, DOWN
JMP S
O: MOV RIGHT, NIL
MOV ACC, DOWN

@4
MOV UP, ACC
MOV ACC, LEFT
MOV ACC, DOWN

@7
MOV UP, DOWN

@8
MOV UP, DOWN
