@5
MOV ACC, DOWN
ADD 1
SAV
SUB 18
JLZ C
MOV LEFT, ACC
C: SWP

@9
MOV 0, DOWN
MOV UP, DOWN
MOV 30, ACC
P: MOV 3, DOWN
MOV 3, DOWN
MOV 3, DOWN
MOV 3, DOWN
MOV 3, DOWN
SUB 5
JGZ P
MOV -1, DOWN
