from machine import Pin
from time import sleep
led=Pin(26,Pin.OUT)
led1=Pin(25,Pin.OUT)
led2=Pin(27,Pin.OUT)
red=Pin(4,Pin.OUT)
yellow=Pin(16,Pin.OUT)
green=Pin(17,Pin.OUT)
while True:
    led.value(0)
    led1.value(0)
    led2.value(0)
    sleep(1)
    led.value(0)
    led1.value(1)
    led2.value(1)
    sleep(1)
    led.value(0)
    sleep(1)
    led.value(1)
    led1.value(0)
    led2.value(1) 
    sleep(1)
    led1.value(0)
    sleep(1)
    led.value(1)
    led1.value(1)
    led2.value(0) 
    sleep(1)
    led2.value(0)
    sleep(1)
    led.value(1)
    led1.value(1)
    led2.value(0)
    sleep(1)
    led.value(0)
    led1.value(0)
    sleep(1)
    led.value(0)
    led1.value(1)
    led2.value(1)
    sleep(1)
    led1.value(0)
    led2.value(0)
    sleep(1)
    led.value(0)
    led1.value(1)
    led2.value(0)
    sleep(1)
    led.value(0)
    led2.value(0)
    sleep(1)
    led.value(0)
    led1.value(0)
    led2.value(0)
    sleep(1)
    led.value(0)
    led1.value(0)
    led2.value(0)
    sleep(1)