//C++ code
//
int rojo=15;
int amarillo=2;
int verde=4;
int rojo2=16;

void setup ()
{
  pinMode(rojo,OUTPUT);
  pinMode(amarillo,OUTPUT);
  pinMode(verde,OUTPUT);
  pinMode(rojo2,OUTPUT);
}

void loop ()
{
  digitalWrite(rojo, HIGH);
  digitalWrite(amarillo, LOW);
  digitalWrite(verde, LOW);
  digitalWrite(rojo2, LOW);
  delay(6000);
  digitalWrite(verde, HIGH);
  digitalWrite(rojo, LOW);
  digitalWrite(amarillo, LOW);
  digitalWrite(rojo2, HIGH);
  delay(4000);
  digitalWrite(amarillo, HIGH);
  digitalWrite(verde, LOW);
  digitalWrite(rojo, LOW);
  delay(2000);
  digitalWrite(amarillo, LOW);
  digitalWrite(verde, LOW);
  digitalWrite(rojo, LOW);
  delay(500);
  digitalWrite(amarillo, HIGH);
  digitalWrite(verde, LOW);
  digitalWrite(rojo, LOW);
  delay(500);
  digitalWrite(amarillo, LOW);
  digitalWrite(verde, LOW);
  digitalWrite(rojo, LOW);
  delay(500);
  digitalWrite(amarillo, HIGH);
  digitalWrite(verde, LOW);
  digitalWrite(rojo, LOW);
  delay(500);
  digitalWrite(amarillo, LOW);
  digitalWrite(verde, LOW);
  digitalWrite(rojo, LOW);
  delay(500);
  digitalWrite(amarillo, HIGH);
  digitalWrite(verde, LOW);
  digitalWrite(rojo, LOW);
  delay(500);
  digitalWrite(amarillo, LOW);
  digitalWrite(verde, LOW);
  digitalWrite(rojo, LOW);
  delay(500);
  digitalWrite(amarillo, HIGH);
  digitalWrite(verde, LOW);
  digitalWrite(rojo, LOW);
  delay(500);
}
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