int led=13;
void setup() {
  pinMode(led,OUTPUT);
}

void loop() {
  digitalWrite(led,HIGH);
  delay(500);
  digitalWrite(led,LOW);
  delay(700);
  digitalWrite(led,HIGH);
  delay(500);
  digitalWrite(led,LOW);
  delay(700);
  digitalWrite(led,HIGH);
  delay(500);
  digitalWrite(led,LOW);
  delay(700);

  digitalWrite(led,HIGH);
  delay(1100);
  digitalWrite(led,LOW);
  delay(700);
  digitalWrite(led,HIGH);
  delay(1100);
  digitalWrite(led,LOW);
  delay(700);
  digitalWrite(led,HIGH);
  delay(1100);
  digitalWrite(led,LOW);
  delay(700);

  digitalWrite(led,HIGH);
  delay(500);
  digitalWrite(led,LOW);
  delay(700);
  digitalWrite(led,HIGH);
  delay(500);
  digitalWrite(led,LOW);
  delay(700);
  digitalWrite(led,HIGH);
  delay(500);
  digitalWrite(led,LOW);
  delay(3000);
}