from machine import Pin
from time import sleep
led = Pin("LED",Pin.OUT)
led1 = Pin(0,Pin.OUT)
led2 = Pin(2,Pin.OUT)
led3 = Pin(3,Pin.OUT)
count_1 = 0
while True:
    led.value(1)
    led1.value(1)
    led2.value(1)
    led3.value(1)
    sleep(1)
    led.value(0)
    led1.value(0)
    led2.value(0)
    led3.value(0)
    sleep(1)
    count_1 =count_1+1
    print(count_1)
    if count_1 ==3:
        led.value(1)
        led.value(0)
        sleep(1)
    if count_1 ==5:
        led1.value(1)
        led1.value(0)
        sleep(1)
    if count_1 ==10:
        led2.value(1)
        led2.value(0)
        sleep(1)
    if count_1 ==15:
        led3.value(1)
        led3.value(0)
        sleep(1)
        count_1 ==0