@0
MOV UP DOWN

@1


@2


@3
   MOV -6    DOWN

E: ADD RIGHT

L: ADD 1
   MOV LAST  DOWN
   JLZ L

   MOV DOWN  RIGHT
   MOV RIGHT ACC

G: MOV ACC   ANY
   MOV DOWN  ACC
   JEZ G
   JGZ G

@4
   MOV -6   LEFT

Z: MOV LEFT NIL
   MOV LAST LEFT

S: MOV ANY  ACC
   MOV UP   LEFT
   JEZ Z

N: MOV LEFT ACC
   MOV ACC  LEFT
   MOV ACC  DOWN
   JMP S

@5


@6


@7
MOV UP DOWN

@8