import time
import random
import RPi.GPIO as GPIO
ledPIN = 18
GPIO.setmode(GPIO.BOARD)
GPIO.setup(ledPIN, GPIO.OUT)
GPIO.setup(22, GPIO.OUT)
GPIO.setup(16, GPIO.OUT)
GPIO.output(16,0)
GPIO.output(18,0)
GPIO.output(22,0)

while 1:
    GPIO.output(22, random.randint(0,1))
    GPIO.output(16, random.randint(0,1))
    GPIO.output(18, random.randint(0,1))
    time.sleep(random.randint(1,30)/100)
GPIO.cleanup()