@1
MOV UP, RIGHT

@2
T: MOV UP, ACC
JLZ A
JGZ B
MOV LEFT, ACC
ADD RIGHT
MOV ACC, DOWN
JMP T
A: MOV RIGHT, NIL
MOV LEFT, DOWN
JMP T
B: MOV LEFT, NIL
MOV RIGHT, DOWN

@3
MOV UP, LEFT

@6
MOV UP, DOWN

@9
MOV UP, DOWN
