@1
MOV UP, ACC
L: JEZ E
SUB 1
MOV 1, RIGHT
JEZ E
SUB 1
MOV 1, RIGHT
JMP L
E: MOV 3, RIGHT

@2
MOV UP, ACC
L: JRO LEFT
MOV ACC, DOWN
JMP L
MOV 500, DOWN

@5
MOV -500, ACC
L: ADD UP
JLZ L
MOV ACC, DOWN

@7
MOV UP, DOWN
