void setup() {
  // put your setup code here, to run once:
pinMode(13, OUTPUT);
pinMode(8, OUTPUT);
pinMode(4, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(13, HIGH);
delay(200);
digitalWrite(13, LOW);
delay(200);
digitalWrite(13, HIGH);
delay(200);
digitalWrite(13, LOW);
delay(200);
digitalWrite(13, HIGH);
delay(200);
digitalWrite(13, LOW);
delay(200);
digitalWrite(13, HIGH);
delay(200);
digitalWrite(13, LOW);
delay(200);
digitalWrite(13, HIGH);
delay(200);
digitalWrite(13, LOW);
delay(200);
digitalWrite(13, HIGH);
delay(200);
digitalWrite(13, LOW);
delay(200);
digitalWrite(8, HIGH);
delay(200);
digitalWrite(8, LOW);
delay(200);
digitalWrite(8, HIGH);
delay(200);
digitalWrite(8, LOW);
delay(200);
digitalWrite(8, HIGH);
delay(200);
digitalWrite(8, LOW);
delay(200);
digitalWrite(8, HIGH);
delay(200);
digitalWrite(8, LOW);
delay(200);
digitalWrite(8, HIGH);
delay(200);
digitalWrite(8, LOW);
delay(200);
digitalWrite(8, HIGH);
delay(200);
digitalWrite(8, LOW);
delay(200);
digitalWrite(8, HIGH);
delay(200);
digitalWrite(8, LOW);
delay(200);
digitalWrite(8, HIGH);
delay(200);
digitalWrite(8, LOW);
delay(200);
digitalWrite(8, HIGH);
delay(200);
digitalWrite(8, LOW);
delay(200);
digitalWrite(8, HIGH);
delay(200);
digitalWrite(8, LOW);
delay(200);
digitalWrite(4, HIGH);
delay(200);
digitalWrite(4, LOW);
delay(200);
digitalWrite(4, HIGH);
delay(200);
digitalWrite(4, LOW);
delay(200);
digitalWrite(4, HIGH);
delay(200);
digitalWrite(4, LOW);
delay(200);
digitalWrite(4, HIGH);
delay(200);
digitalWrite(4, LOW);
delay(200);
digitalWrite(4, HIGH);
delay(200);
digitalWrite(4, LOW);
delay(200);
digitalWrite(4, HIGH);
delay(200);
digitalWrite(4, LOW);
delay(200);
digitalWrite(4, HIGH);
delay(200);
digitalWrite(4, LOW);
delay(200);
digitalWrite(4, HIGH);
delay(200);
digitalWrite(4, LOW);
delay(200);
digitalWrite(4, HIGH);
delay(200);
digitalWrite(4, LOW);
delay(200);
digitalWrite(4, HIGH);
delay(200);
digitalWrite(4, LOW);
delay(200);

}