@0
MOV UP ACC
JLZ N
MOV RIGHT NIL
JMP O
N: MOV RIGHT ACC
O: MOV ACC RIGHT
MOV ACC DOWN

@1
S: MOV UP ACC
MOV ACC LEFT
JLZ N
MOV LEFT NIL
MOV ACC DOWN
JMP S
N: MOV LEFT DOWN

@3
MOV UP DOWN

@4
MOV UP DOWN

@7
MOV UP DOWN

@8
MOV UP DOWN
