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

@2
L: MOV UP, ACC
SAV
SUB LEFT
JLZ S
MOV LEFT, ACC
MOV ACC, DOWN
SWP
JMP E
S: SWP
MOV ACC, DOWN
MOV LEFT, ACC
E: MOV ACC, DOWN
MOV 0, DOWN

@6
MOV UP, DOWN

@9
MOV UP, DOWN
