@1
S: MOV UP, ACC
JEZ Z
MOV 0, DOWN
JMP S
Z: MOV 1, DOWN

@4
S: MOV UP, ACC
JNZ P
SAV
MOV ACC, DOWN
JMP S
P: SWP
MOV ACC, DOWN

@8
MOV UP, RIGHT

@9
S: MOV LEFT, ACC
JEZ Z
SWP
MOV ACC, DOWN
JMP S
Z: SAV
MOV ACC, DOWN
