from machine import Pin
import utime

Redled = Pin(13,Pin.OUT)
Yellowled = Pin(14,Pin.OUT)
Greenled = Pin(15,Pin.OUT)
print("Hello, Pi Pico!")
while True:
    print("led is on for 1 second")
    Redled.on()
    Greenled.off()
    utime.sleep(10)
    
    Redled.off()
    Yellowled.on()
    print("led is off for 1 second")
    utime.sleep(3)
     Yellowled.off()
    Greenled.on()
    print("led is off for 1 second")
    utime.sleep(30)