@0
S: MOV UP, ACC
MOV ACC, RIGHT
JLZ A
MOV ACC, DOWN
MOV ACC, RIGHT
JMP S
A: MOV RIGHT, DOWN

@1
S: MOV LEFT, ACC
JLZ A
MOV UP, ACC
JLZ B
MOV LEFT, NIL
MOV ACC, DOWN
JMP S
B: MOV LEFT, ACC
MOV ACC, DOWN
JMP S
A: MOV UP, ACC
MOV ACC, LEFT
MOV ACC, DOWN

@3
MOV UP, DOWN

@4
MOV UP, DOWN

@7
MOV UP, DOWN

@8
MOV UP, DOWN
