void setup() {
  // put your setup code here, to run once:
pinMode(1, OUTPUT);
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
pinMode(12, OUTPUT);
pinMode(13, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(1, HIGH);
delay(50);
digitalWrite(1, LOW);
delay(50);
digitalWrite(2, HIGH);
delay(50);
digitalWrite(2, LOW);
delay(50);
digitalWrite(3, HIGH);
delay(50);
digitalWrite(3, LOW);
delay(50);
digitalWrite(4, HIGH);
delay(50);
digitalWrite(4, LOW);
delay(50);
digitalWrite(5, HIGH);
delay(50);
digitalWrite(5, LOW);
delay(50);
digitalWrite(9, HIGH);
delay(50);
digitalWrite(9, LOW);
delay(50);
digitalWrite(10, HIGH);
delay(50);
digitalWrite(10, LOW);
delay(50);
digitalWrite(12, HIGH);
delay(50);
digitalWrite(12, LOW);
delay(50);
digitalWrite(13, HIGH);
delay(50);
digitalWrite(13, LOW);
delay(50);
}