void setup ()
{



}

void loop () 
{

  digitalWrite(13,HIGH);
  delay(200);

  digitalWrite(13,LOW);

  digitalWrite(12,HIGH);
  delay(200);
  
  digitalWrite(12,LOW);

  digitalWrite(11,HIGH);
  delay(200);
  
  digitalWrite(11,LOW);

  digitalWrite(10,HIGH);
  delay(200);
  
  digitalWrite(10,LOW);

  digitalWrite(9,HIGH);
  delay(200);
  
  digitalWrite(9,LOW);

  digitalWrite(8,HIGH);
  delay(200);
  
  digitalWrite(8,LOW);

  digitalWrite(7,HIGH);
  delay(200);
  
  digitalWrite(7,LOW);

  
  digitalWrite(6,HIGH);
  delay(200);
  
  digitalWrite(6,LOW);

  
  digitalWrite(5,HIGH);
  delay(200);
  
  digitalWrite(5,LOW);

  
  digitalWrite(4,HIGH);
  delay(200);
  
  digitalWrite(4,LOW);

  
  digitalWrite(3,HIGH);
  delay(200);
  
  digitalWrite(3,LOW);

  
  digitalWrite(2,HIGH);
  delay(200);
  
  digitalWrite(2,LOW);

  
  digitalWrite(1,HIGH);
  delay(200);
  
  digitalWrite(1,LOW);

 

  digitalWrite(2,HIGH);
  delay(200);
  
  digitalWrite(2,LOW);

  digitalWrite(3,HIGH);
  delay(200);
  
  digitalWrite(3,LOW);

  digitalWrite(4,HIGH);
  delay(200);
  
  digitalWrite(4,LOW);

  digitalWrite(5,HIGH);
  delay(200);
  
  digitalWrite(5,LOW);

  digitalWrite(6,HIGH);
  delay(200);
  
  digitalWrite(6,LOW);

  digitalWrite(7,HIGH);
  delay(200);
  
  digitalWrite(7,LOW);

  
  digitalWrite(8,HIGH);
  delay(200);
  
  digitalWrite(8,LOW);

  
  digitalWrite(9,HIGH);
  delay(200);
  
  digitalWrite(9,LOW);

  
  digitalWrite(10,HIGH);
  delay(200);
  
  digitalWrite(10,LOW);

  
  digitalWrite(11,HIGH);
  delay(200);
  
  digitalWrite(11,LOW);

  
  digitalWrite(12,HIGH);
  delay(200);
  
  digitalWrite(12,LOW);

  
  digitalWrite(13,HIGH);
  delay(200);
  
  digitalWrite(13,LOW);


}