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

@2
MOV LEFT, ACC
JEZ C
L: MOV UP, NIL
SUB 1
JGZ L
C: MOV LEFT, ACC
K: MOV UP, DOWN
ADD 1
JLZ K
MOV 0, DOWN
D: MOV UP, ACC
JNZ D

@6
MOV UP, DOWN

@9
MOV UP, DOWN
