const int LED = 13;

void setup() 
{

  pinMode(LED,OUTPUT);

}

void loop() 
{

  digitalWrite (LED,HIGH);
  delay (300);
  digitalWrite (LED,LOW);
  delay (1000);
  digitalWrite (LED,HIGH);
  delay (300);
  digitalWrite (LED,LOW);
  delay (1000);
  digitalWrite (LED,HIGH);
  delay (300);
  digitalWrite (LED,LOW);
  delay (1000);
  digitalWrite (LED,HIGH);
  delay (1000);
  digitalWrite (LED,LOW);
  delay (1000);
  digitalWrite (LED,HIGH);
  delay (1000);
  digitalWrite (LED,LOW);
  delay (1000);
  digitalWrite (LED,HIGH);
  delay (1000);
  digitalWrite (LED,LOW);
  delay (1000);

}