@0
MOV UP    DOWN
MOV RIGHT DOWN

@1
MOV UP LEFT

@2


@3
S: MOV UP ACC
   MOV UP DOWN
   JLZ S

   MOV ACC DOWN

@4


@5


@6


@7
MOV ANY ANY

@8
S: MOV LEFT ACC
   JLZ S

   MOV ACC  ANY

G: MOV ACC  DOWN

@9
MOV LEFT NIL