@1
MOV UP, DOWN

@5
MOV UP, RIGHT

@6
MOV 17, ACC
SAV
MOV LEFT, ACC
LOOP: SWP
MOV ACC, DOWN
SUB 1
SWP
SUB 1
JGZ LOOP
MOV -1, DOWN

@9
S: MOV UP, ACC
JLZ NEXT
SWP
MOV ACC, DOWN
SWP
MOV ACC, DOWN
MOV 3, DOWN
MOV -1, DOWN
JMP S
NEXT: SWP
ADD 1
SWP
