@0
ADD UP
MOV ACC, RIGHT
MOV ACC, RIGHT

@1
ADD UP
SAV
SUB LEFT
JGZ 2
SWP
MOV LEFT,DOWN
MOV RIGHT,DOWN
MOV 1,DOWN
JMP V
2:SWP
MOV ACC,DOWN
MOV LEFT,NIL
MOV RIGHT,DOWN
MOV 2,DOWN
V:MOV RIGHT,DOWN

@2
^:ADD UP
SAV
SUB RIGHT
JLZ ->
SWP
MOV ACC,LEFT
MOV RIGHT,NIL
MOV 3,LEFT
JMP ^
->:SWP
MOV RIGHT,LEFT
MOV 4,LEFT

@3
ADD UP
MOV ACC, LEFT
MOV ACC, LEFT

@4


@5
^:MOV UP,ACC
SAV
SUB UP
JLZ ->
MOV UP,DOWN
MOV UP,NIL
JMP ^
->:MOV UP,NIL
MOV UP,DOWN

@6


@7


@8


@9
MOV UP,DOWN

@10


@11