from machine import Pin
from time import sleep

LED1 = Pin(15, Pin.OUT)  
LED2 = Pin(14, Pin.OUT)    
LED3 = Pin(11, Pin.OUT)
BUTTON = Pin(16, Pin.IN)    

while True :
    
    if BUTTON.value() == 1:
        LED1.on()
        sleep(1)
        LED2.on()
        sleep(1)
        LED3.on()
        sleep(1)

    
    else:
        LED2.off() 
        sleep(0.1)
        LED1.off() 
        sleep(0.1)
        LED3.off() 
        sleep(0.1)