import machine
from machine import Pin

ledRojo = Pin(1, Pin.OUT)
SliderA = Pin(5, Pin.IN, Pin.PULL_UP)
SliderB = Pin(6, Pin.IN, Pin.PULL_UP)
SliderC = Pin(7, Pin.IN, Pin.PULL_UP)

while True:
    A = SliderA.value()
    B = SliderB.value()
    C = SliderC.value()
    AND = A and B and C
    ledRojo.value(AND)