// C++ code
//
int counter;
int encendido = 1;
int apagado = 0;

int led1 = 6;
int led2 = 7;
int led3 = 8;



void setup()
{
  pinMode(led3, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led1, OUTPUT);
}

void loop()
{
  for (counter = 0; counter < 10; ++counter) {
    digitalWrite(led3, encendido);
    delay(1000); // Wait for 1000 millisecond(s)
    digitalWrite(led3, 0);
    delay(1000); // Wait for 1000 millisecond(s)
    digitalWrite(led2, 1);
    delay(1000); // Wait for 1000 millisecond(s)
    digitalWrite(led2, 0);
    delay(1000); // Wait for 1000 millisecond(s)
    digitalWrite(led1, 1);
    delay(1000); // Wait for 1000 millisecond(s)
    digitalWrite(led1, 0);
    delay(1000); // Wait for 1000 millisecond(s)
  }
}