@1
MOV UP, ACC
MOV ACC, RIGHT
MOV ACC, DOWN

@2
L: MOV LEFT, ACC
JEZ Z
MOV -1, DOWN
JMP L
Z: MOV 1, DOWN

@4
ADD UP
JRO RIGHT
MOV ACC, DOWN
MOV 0, ACC

@5
MOV UP, ACC
MOV ACC, LEFT
MOV ACC, DOWN

@8
MOV UP, DOWN

@9
ADD 1
JRO UP
SUB 1
MOV ACC, DOWN
MOV 0, ACC
