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

@2
S: MOV UP, ACC
SAV
SUB LEFT
JLZ B_L
MOV LEFT, DOWN
SWP
MOV ACC, DOWN
JMP S
B_L:
SWP
MOV ACC, DOWN
MOV LEFT, DOWN

@6
MOV UP, DOWN
MOV UP, DOWN
MOV 0, DOWN

@9
MOV UP, DOWN
