int ledV1 = 13;
int ledA1 = 12;
int ledR1 = 14;
int ledV2 = 27;
int ledA2 = 26;
int ledR2 = 25;
int ledV3 = 15;
int ledA3 = 2;
int ledR3 = 4;
int ledV4 = 16;
int ledA4 = 17;
int ledR4 = 5;

void setup() {
  pinMode(ledV1, OUTPUT); 
  pinMode(ledA1, OUTPUT); 
  pinMode(ledR1, OUTPUT); 
  pinMode(ledV2, OUTPUT); 
  pinMode(ledA2, OUTPUT); 
  pinMode(ledR2, OUTPUT); 
  pinMode(ledV3, OUTPUT); 
  pinMode(ledA3, OUTPUT); 
  pinMode(ledR3, OUTPUT); 
  pinMode(ledV4, OUTPUT); 
  pinMode(ledA4, OUTPUT); 
  pinMode(ledR4, OUTPUT); 
}

void loop() {
// VIAS 1 y 3 (VERDE) 
  digitalWrite(ledV1, HIGH);
  digitalWrite(ledV3, HIGH);

  digitalWrite(ledA1, LOW);
  digitalWrite(ledA3, LOW);

  digitalWrite(ledR1, LOW);
  digitalWrite(ledR3, LOW);

  digitalWrite(ledR2, HIGH);
  digitalWrite(ledR4, HIGH);

  delay(5000);

  // VIAS 1 y 3 (AMARILLO) 
  digitalWrite(ledV1, LOW);
  digitalWrite(ledV3, LOW);

  digitalWrite(ledA1, HIGH);
  digitalWrite(ledA3, HIGH);

  delay(2000);

  digitalWrite(ledA1, LOW);
  digitalWrite(ledA3, LOW);

  digitalWrite(ledR1, HIGH);
  digitalWrite(ledR3, HIGH);


  // VIAS 2 y 4 (VERDE) 
  digitalWrite(ledV2, HIGH);
  digitalWrite(ledV4, HIGH);

  digitalWrite(ledR2, LOW);
  digitalWrite(ledR4, LOW);

  delay(5000);

  // VIAS 2 y 4 (AMARILLO) 
  digitalWrite(ledV2, LOW);
  digitalWrite(ledV4, LOW);

  digitalWrite(ledA2, HIGH);
  digitalWrite(ledA4, HIGH);

  delay(2000);

  digitalWrite(ledA2, LOW);
  digitalWrite(ledA4, LOW);

  digitalWrite(ledR2, HIGH);
  digitalWrite(ledR4, HIGH);
}