from machine import Pin 
from time import sleep  

left_switch = Pin(2, Pin.IN)
right_switch = Pin(3, Pin.IN)

left_led = Pin(15, Pin.OUT)
right_led = Pin(17, Pin.OUT)

while True:
    left_state = left_switch.value()
    right_state = right_switch.value()

    if left_state == 1 and right_state == 0:
        left_led.value(1)
        sleep(0.5)
        left_led.value(0)
        sleep(0.5)

    elif left_state == 0 and right_state == 1:
        right_led.value(1)
        sleep(0.5)
        right_led.value(0)
        sleep(0.5)

    else:
        left_led.value(0)
        right_led.value(0)

    sleep(0.1)