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

void loop() {
  // put your main code here, to run repeatedly:
/* Fast Blink
digitalWrite(13,HIGH);
delay(500);
digitalWrite(13,LOW);
delay(500);
*/

/* Slow Blink
digitalWrite(13,HIGH);
delay(1000);
digitalWrite(13,LOW);
delay(500);
*/

digitalWrite(13,HIGH);
delay(500);
digitalWrite(13,LOW);
delay(500);

digitalWrite(13,HIGH);
delay(500);
digitalWrite(13,LOW);
delay(500);

digitalWrite(13,HIGH);
delay(500);
digitalWrite(13,LOW);
delay(500);

digitalWrite(13,HIGH);
delay(1000);
digitalWrite(13,LOW);
delay(500);

digitalWrite(13,HIGH);
delay(1000);
digitalWrite(13,LOW);
delay(500);

digitalWrite(13,HIGH);
delay(1000);
digitalWrite(13,LOW);
delay(500);

digitalWrite(13,HIGH);
delay(500);
digitalWrite(13,LOW);
delay(500);

digitalWrite(13,HIGH);
delay(500);
digitalWrite(13,LOW);
delay(500);

digitalWrite(13,HIGH);
delay(500);
digitalWrite(13,LOW);
delay(500);

}