import time
import digitalio
import board

A=digitalio.DigitalInOut(board.GP0)
A.switch_to_input(pull=digitalio.Pull.DOWN)
B=digitalio.DigitalInOut(board.GP1)
B.switch_to_input(pull=digitalio.Pull.DOWN)
C=digitalio.DigitalInOut(board.GP2)
C.switch_to_input(pull=digitalio.Pull.DOWN)
D=digitalio.DigitalInOut(board.GP3)
D.switch_to_input(pull=digitalio.Pull.DOWN)

F=digitalio.DigitalInOut(board.GP15)
F.direction = digitalio.Direction.OUTPUT

while True:
    F.value = (not(A.value) and not (C.value)) or (not(B.value) and (C.value))
    print('El valor de F es:', F.value)
    time.sleep(0.5)