@0
MOV UP DOWN

@1


@2
#MOV 1 RIGHT
#MOV 2 RIGHT
#MOV 3 RIGHT
#MOV 4 RIGHT

@3
   MOV ANY   ACC
   JEZ R
   MOV 1     DOWN
   MOV ACC   RIGHT
   SWP
S: MOV ACC   DOWN
   MOV -1    DOWN
   MOV ACC   DOWN
   SUB 27
   JNZ L
R: MOV 4     DOWN!
   MOV ANY   RIGHT
   JMP S
L: ADD 30
   SWP

@4
J: JRO LEFT
   JMP J
   JMP O
   SUB 3
   MOV 3    DOWN
   ADD DOWN

O: MOV ACC  DOWN
   MOV 0    ACC

@5


@6
ADD UP
MOV 3   RIGHT
MOV -1  RIGHT
MOV UP  RIGHT
MOV ACC RIGHT

@7
MOV ANY ANY

@8