@1
MOV UP, RIGHT

@2
MOV UP, ACC
JEZ Z
JGZ P
MOV RIGHT, NIL
MOV LEFT, DOWN
JMP S
P: MOV LEFT, NIL
MOV RIGHT, DOWN
JMP S
Z: MOV LEFT, ACC
ADD RIGHT
MOV ACC, DOWN
S:

@3
MOV UP, LEFT

@6
MOV UP, DOWN

@9
MOV UP, DOWN
