@1
MOV UP, DOWN
MOV UP, RIGHT

@2
MOV LEFT, DOWN

@4
MOV UP, ACC
ADD ACC
SUB 1
L: MOV ACC, DOWN
SUB 4
JGZ L
MOV -999, DOWN

@5
MOV UP, ACC
ADD ACC
SUB 1
L: MOV ACC, DOWN
SUB 4
JGZ L
MOV -999, DOWN

@8
L: ADD UP
JGZ L
ADD 999
MOV ACC, DOWN
SUB ACC
MOV RIGHT, DOWN

@9
L: ADD UP
JGZ L
ADD 999
MOV ACC, LEFT
SUB ACC
