import machine
from machine import Pin

LedRojo = Pin(12,Pin.OUT)
LedAmarillo = Pin(14,Pin.OUT)

Entrada1 = Pin(19,Pin.IN,Pin.PULL_UP)
Entrada2 = Pin(5,Pin.IN,Pin.PULL_UP)
Entrada3 = Pin(4,Pin.IN,Pin.PULL_UP)

while True:
    A = Entrada1.value()
    B = Entrada2.value()
    C = Entrada3.value()

    amarillo = A or B
    rojo = C or A 

    LedRojo.value(rojo)
    LedAmarillo.value(amarillo)