from machine import Pin
from time import sleep

led1 = Pin(2, Pin.OUT)
led2 = Pin(0, Pin.OUT)
led3 = Pin(4, Pin.OUT)
led4 = Pin(21, Pin.OUT)
led5 = Pin(22, Pin.OUT)
led6 = Pin(23, Pin.OUT)
led7 = Pin(13, Pin.OUT)
led8 = Pin(12, Pin.OUT)
led9 = Pin(14, Pin.OUT)

while True:
    led1.on()
    led2.on()
    led3.on()
    sleep(1)
    led1.off()
    led2.off()
    led3.off()
    sleep(1)
    led4.on()
    led5.on()
    led6.on()
    sleep(2)
    led4.off()
    led5.off()
    led6.off()
    sleep(2)
    led7.on()
    led8.on()
    led9.on()
    sleep(3)
    led7.off()
    led8.off()
    led9.off()
    sleep(3)