const int RED= 12;
const int GREEN= 11;
const int BLUE= 10;
const int PIN_4=4;
boolean ValorRecibido;

void setup() {
  // put your setup code here, to run once:
  pinMode(RED, OUTPUT);
  pinMode(GREEN, OUTPUT);
  pinMode(BLUE, OUTPUT);
  pinMode(PIN_4, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  ValorRecibido=digitalRead(PIN_4);
  if(ValorRecibido==HIGH)
  {
    digitalWrite(RED, HIGH);
    digitalWrite(GREEN, LOW);
    digitalWrite(BLUE, LOW);
    delay(500);

    digitalWrite(RED, LOW);
    digitalWrite(GREEN, HIGH);
    digitalWrite(BLUE, LOW);
    delay(500);

    digitalWrite(RED, LOW);
    digitalWrite(GREEN, LOW);
    digitalWrite(BLUE, HIGH);
    delay(500);
  }
  else
  {
     digitalWrite(RED, HIGH);
    digitalWrite(GREEN, HIGH);
    digitalWrite(BLUE, LOW);
    delay(500);

    digitalWrite(RED, LOW);
    digitalWrite(GREEN, HIGH);
    digitalWrite(BLUE, HIGH);
    delay(500);

    digitalWrite(RED, HIGH);
    digitalWrite(GREEN, LOW);
    digitalWrite(BLUE, HIGH);
    delay(500);

  }
  
}