void setup() {
  // put your setup code here, to run once:
pinMode(13, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(13,HIGH);
delay(300);
digitalWrite(13,LOW);
delay(300);
digitalWrite(13,HIGH);
delay(300);
digitalWrite(13,LOW);
delay(300);
digitalWrite(13,HIGH);
delay(300);
digitalWrite(13,LOW);
delay(300);
digitalWrite(13,HIGH);
delay(800);
digitalWrite(13,LOW);
delay(800);
digitalWrite(13,HIGH);
delay(800);
digitalWrite(13,LOW);
delay(800);
digitalWrite(13,HIGH);
delay(800);
digitalWrite(13,LOW);
delay(800);
digitalWrite(13,HIGH);
delay(300);
digitalWrite(13,LOW);
delay(300);
digitalWrite(13,HIGH);
delay(300);
digitalWrite(13,LOW);
delay(300);
digitalWrite(13,HIGH);
delay(300);
digitalWrite(13,LOW);
delay(300);
}