#!/usr/bin/python
import RPi.GPIO as GPIO
from time import sleep
from subprocess import call

GPIO.setmode(GPIO.BCM)
GPIO.setup(18, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(23, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(24, GPIO.IN, pull_up_down=GPIO.PUD_UP)

while True:
    
    if not GPIO.input(18):
        call(["/root/l1", "&"])
    if not GPIO.input(23):
        call(["/root/l2", "&"])
    if not GPIO.input(24):
        call(["/root/l3", "&"])

    sleep(0.1)
    
l.clear()