@1
MOV UP, DOWN

@4
MOV UP, ACC
MOV ACC, DOWN
MOV ACC, DOWN

@8
L: MOV UP, ACC
MOV ACC, RIGHT
SWP
ADD UP
SWP
JNZ L
SWP
MOV ACC, DOWN

@9
L: MOV LEFT, ACC
JEZ Z
SWP
ADD 1
SAV
JMP L
Z: SWP
MOV ACC, DOWN
