@0
MOV ANY DOWN

@1
MOV DOWN LEFT

@2

MOV UP  ACC  #0>1
MOV ACC LAST #0
MOV ANY DOWN #2
MOV ACC RIGHT#1>2
MOV ACC ANY  #1

@3
MOV LAST ANY

@4
MOV UP RIGHT

@5
MOV LEFT ACC
MOV ACC  RIGHT
MOV ACC  UP

@6
   MOV UP   ACC
   SUB LEFT

   JGZ G
   NEG
G: MOV ACC  DOWN

#   JNZ N
#   MOV 0 DOWN
#   JRO -99
#N: MOV 1 DOWN

@7


@8
#MOV UP UP!

@9


@10
MOV ACC DOWN
MOV -998 ACC

SUB ANY
SUB ANY
SUB ANY

ADD 999