int i=0;

void setup() {
  // put your setup code here, to run once:



  Serial.begin(9600);
  Serial.println("Hola mundo");

}

void loop() {
  // put your main code here, to run repeatedly:

  
  for (i=0; i<100; i++)
  {
    delay(100);
    if (i%3==0)
    {
      Serial.println(i);
    }
  
  }
  
}