@0


@1
   MOV 0     RIGHT
S: MOV UP    ACC
   MOV ACC   RIGHT
   JNZ S
   MOV -1    DOWN
   MOV RIGHT NIL
S2:MOV UP    ACC
   MOV ACC   DOWN
   JNZ S2
   MOV DOWN  NIL

@2


@3


@4
   MOV UP    RIGHT
   MOV 0     DOWN
S2:MOV UP    ACC
   MOV ACC   DOWN
   JNZ S2
   MOV RIGHT UP
   MOV DOWN  NIL
   MOV RIGHT NIL

@5
   MOV LEFT  NIL
E: MOV UP    ACC
   MOV ACC   DOWN
   JNZ E
   MOV -1    LEFT
   MOV -1    DOWN
   MOV DOWN  LEFT

@6


@7
S: MOV UP    ACC
   MOV ACC   DOWN
   JNZ S
   MOV UP    NIL
S2:MOV LEFT  ACC
   MOV ACC   DOWN
   JNZ S2
   MOV -1    UP

@8