from machine import Pin
import time
v1=Pin(13,Pin.IN)
l1=Pin(12,Pin.IN)
s1=Pin(14,Pin.IN)
f1=Pin(27,Pin.IN)
led=Pin(26,Pin.OUT)
def fun():
while True:
V= v1.value()
L= l1.value()
S= s1.value()
F= f1.value()
if ( L or V and not S or S and not F):
led.on()
else:
led.off()
fun()