void setup() {
  // single led run:
pinMode(13, OUTPUT);
pinMode(12, OUTPUT);
pinMode(9, OUTPUT);
pinMode(7, OUTPUT);
pinMode(3, OUTPUT);
}

void loop() {
  digitalWrite(13, HIGH);
  delay(300);
  digitalWrite(12, HIGH);
  delay(300);
  digitalWrite(9, HIGH);
  delay(300);
  digitalWrite(7, HIGH);
  delay(300);
  digitalWrite(3, HIGH);
  delay(300);
  digitalWrite(7, LOW);
  delay(300);
  digitalWrite(13, LOW);
  delay(300);
  digitalWrite(12, LOW);
  delay(300);
  digitalWrite(9, LOW);
  delay(300);
  digitalWrite(3, LOW);
  delay(300);
  
  
 
   
  

  // put your main code here, to run repeatedly:

}