int led = 12;
   int dl1 = 1000;
   int dl2 = 500;
   int r;
void setup() {
  pinMode(13, OUTPUT); //set pin 13 as output

}
void loop() {
   digitalWrite(13, HIGH); //set pin 13 high (+5v)
   delay(dl1); // wait 1000 ms = 2 seconde
   digitalWrite(13, LOW); //set pin 13 low (0v)
   delay(dl1); // wait

 for (r=0 ;r<5; r++){
   digitalWrite(13, HIGH);//set pin 13 high (+5v)
   delay(dl2); // wait 1000 ms = 2 second
   digitalWrite(13, LOW);//sert pin 13 low
   delay(dl2); // wait 2 second
}
}