@1
MOV UP, DOWN

@4
MOV ACC, RIGHT
ADD 1

@5
MOV UP, DOWN
MOV LEFT, DOWN

@8
S:MOV UP, ACC
NEG
ADD 18
SAV
MOV UP, ACC
SWP
L:SUB 18
JEZ S
ADD 18
SWP
MOV ACC, RIGHT
SWP
MOV ACC, RIGHT
ADD 1
JMP L

@9
MOV LEFT, DOWN
MOV LEFT, DOWN
MOV 3, DOWN
MOV -1, DOWN
