@1
T: MOV UP ACC
MOV ACC RIGHT
SUB UP
ADD 3
L: JGZ F
MOV -1 RIGHT
ADD 1
JMP L
F: MOV ACC RIGHT
JMP T

@2
MOV LEFT ACC
JEZ B
A: MOV UP NIL
SUB 1
JNZ A
JMP B
MOV UP DOWN
B: JRO LEFT
MOV UP DOWN
MOV UP DOWN
MOV UP DOWN
D: MOV UP ACC
JNZ D
MOV ACC DOWN

@6
MOV UP DOWN

@9
MOV UP DOWN
