void setup()
{
  pinMode(3, OUTPUT);
}

void ledss()
{
  digitalWrite(3, HIGH);
  delay(200);
  digitalWrite(3, LOW);
  delay(200);
  digitalWrite(3,HIGH);
  delay(200);
  digitalWrite(3, LOW);
  delay(200);
  digitalWrite(3, HIGH);
}

void loop() 
{
  ledss();
  delay(1000);
}