@1
MOV UP, ACC
MOV ACC, RIGHT
MOV ACC, RIGHT

@2
MOV UP, ACC
SAV
SUB LEFT
JGZ G
SWP
MOV ACC, DOWN
MOV LEFT, DOWN
JMP Z
G:MOV LEFT, DOWN
SWP
MOV ACC, DOWN
Z:MOV 0, DOWN

@6
MOV UP, DOWN

@9
MOV UP, DOWN
