int a;
void setup() {
  //put your setup code here , to run once ; 
  pinMode(1, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(3, OUTPUT);
  

}

void loop() {
  // put your main code here, to run repeatedly:
  {
    //pattern 1 
    for(a=0;a<=4;a++)
    {
      digitalWrite(1, HIGH);
      digitalWrite(6, HIGH);
      digitalWrite(3, HIGH);
      delay(200);
      digitalWrite(1, LOW);
      digitalWrite(6, LOW);
      digitalWrite(3, LOW);
      delay(200);
    }
    digitalWrite(1,);