from machine import Pin
from time import sleep

red_led = Pin(0, Pin.OUT)   
blue_led = Pin(9, Pin.OUT)  

while True:
   red_led.on()  
   sleep(0.3)    
   red_led.off() 
   sleep(0.3)    
   
   blue_led.on()
   sleep(0.6)      
   blue_led.off()
   sleep(0.6)