@0


@1
MOV UP RIGHT

@2
S: MOV UP   DOWN
   MOV LEFT ACC
   SUB DOWN
   JLZ N
   MOV    0 DOWN

N: MOV ACC  DOWN
   NEG
   JGZ N

   MOV  999 DOWN
   MOV DOWN NIL
   MOV -999 DOWN

@3


@4


@5


@6
ADD UP
MOV ACC ANY

@7


@8


@9
MOV UP DOWN

@10