@1
MOV UP ACC
MOV ACC RIGHT
SUB UP
MOV ACC RIGHT

@2
MOV LEFT ACC
A: SUB 1
JLZ B
MOV UP NIL
JMP A
B: ADD LEFT
C: MOV UP DOWN
ADD 1
JNZ C
D: MOV UP ACC
JNZ D
MOV ACC DOWN

@6
MOV UP DOWN

@9
MOV UP DOWN
