int ledverde = 2;
int ledamarillo = 4;
int ledrojo = 16;
int ledverde2 = 5;
int ledamarillo2 = 0;
int ledrojo2 = 17;
int ledverde3 = 18;
int ledamarillo3 = 15;
int ledrojo3 = 19;
int ledverde4 = 26;
int ledamarillo4 = 25;
int ledrojo4 = 33;

void setup() {
  // inicializamos el led como pin de salida
  pinMode(ledverde, OUTPUT);
  pinMode(ledamarillo, OUTPUT);
  pinMode(ledrojo, OUTPUT);
  pinMode(ledverde2, OUTPUT);
  pinMode(ledamarillo2, OUTPUT);
  pinMode(ledrojo2, OUTPUT);
  pinMode(ledverde3, OUTPUT);
  pinMode(ledamarillo3, OUTPUT);
  pinMode(ledrojo3, OUTPUT);
  pinMode(ledverde4, OUTPUT);
  pinMode(ledamarillo4, OUTPUT);
  pinMode(ledrojo4, OUTPUT);
}

void loop() {
  //encendemos ledverde

  digitalWrite(ledverde, HIGH);
  digitalWrite(ledrojo2, HIGH);
  digitalWrite(ledrojo3, HIGH);
  digitalWrite(ledrojo4, HIGH);
  delay(1000);
  digitalWrite(ledverde, LOW);
  delay(0);
  digitalWrite(ledverde, HIGH);
  delay(300);
  digitalWrite(ledverde, LOW);
  delay(200);
  digitalWrite(ledverde, HIGH);
  delay(300);
  digitalWrite(ledverde, LOW);
  delay(200);
  digitalWrite(ledverde, HIGH);
  delay(300);
  digitalWrite(ledverde, LOW);
  delay(200);
  

  digitalWrite(ledamarillo, HIGH);
  delay(700);
  digitalWrite(ledamarillo, LOW);
  delay(0);
  
  digitalWrite(ledrojo, HIGH);
  delay(1000);
  digitalWrite(ledrojo, LOW);
  delay(0);
  digitalWrite(ledrojo, HIGH);
  digitalWrite(ledrojo2, LOW);
  

  //segundo semaforo
  digitalWrite(ledverde2, HIGH);
  digitalWrite(ledrojo, HIGH);
  digitalWrite(ledrojo3, HIGH);
  digitalWrite(ledrojo4, HIGH);
  delay(1000);
  digitalWrite(ledverde2, LOW);
  delay(0);
  digitalWrite(ledverde2, HIGH);
  delay(300);
  digitalWrite(ledverde2, LOW);
  delay(200);
  digitalWrite(ledverde2, HIGH);
  delay(300);
  digitalWrite(ledverde2, LOW);
  delay(200);
  digitalWrite(ledverde2, HIGH);
  delay(300);
  digitalWrite(ledverde2, LOW);
  delay(200);


  digitalWrite(ledamarillo2, HIGH);
  delay(700);
  digitalWrite(ledamarillo2, LOW);
  delay(0);
  
  digitalWrite(ledrojo2, HIGH);
  delay(1000);
  digitalWrite(ledrojo2, LOW);
  delay(0);
  digitalWrite(ledrojo2, HIGH);
  digitalWrite(ledrojo3, LOW);
 

//tercer semaforo
digitalWrite(ledverde3, HIGH);
digitalWrite(ledrojo, HIGH);
  digitalWrite(ledrojo2, HIGH);
  digitalWrite(ledrojo4, HIGH);
  delay(1000);
  digitalWrite(ledverde3, LOW);
  delay(0);
  digitalWrite(ledverde3, HIGH);
  delay(300);
  digitalWrite(ledverde3, LOW);
  delay(200);
  digitalWrite(ledverde3, HIGH);
  delay(300);
  digitalWrite(ledverde3, LOW);
  delay(200);
  digitalWrite(ledverde3, HIGH);
  delay(300);
  digitalWrite(ledverde3, LOW);
  delay(200);


  digitalWrite(ledamarillo3, HIGH);
  delay(700);
  digitalWrite(ledamarillo3, LOW);
  delay(0);
  
  digitalWrite(ledrojo3, HIGH);
  delay(1000);
  digitalWrite(ledrojo3, LOW);
  delay(0);
  digitalWrite(ledrojo3, HIGH);
  digitalWrite(ledrojo4, LOW);

  //cuarto semaforo
  digitalWrite(ledverde4, HIGH);
  digitalWrite(ledrojo, HIGH);
  digitalWrite(ledrojo2, HIGH);
  digitalWrite(ledrojo3, HIGH);
  delay(1000);
  digitalWrite(ledverde4, LOW);
  delay(0);
  digitalWrite(ledverde4, HIGH);
  delay(300);
  digitalWrite(ledverde4, LOW);
  delay(200);
  digitalWrite(ledverde4, HIGH);
  delay(300);
  digitalWrite(ledverde4, LOW);
  delay(200);
  digitalWrite(ledverde4, HIGH);
  delay(300);
  digitalWrite(ledverde4, LOW);
  delay(200);


  digitalWrite(ledamarillo4, HIGH);
  delay(700);
  digitalWrite(ledamarillo4, LOW);
  delay(0);
  
  digitalWrite(ledrojo4, HIGH);
  delay(1000);
  digitalWrite(ledrojo4, LOW);
  delay(0);
  digitalWrite(ledrojo, LOW);
}