void setup() {
  // put your setup code here, to run once:
pinMode(13, OUTPUT);
pinMode(12, OUTPUT);
pinMode(11, OUTPUT);
pinMode(10, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
pinMode(23, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(13, HIGH);digitalWrite(9, HIGH);
delay(1000);delay(1000);
digitalWrite(13, LOW);digitalWrite(9, LOW);
digitalWrite(12, HIGH);digitalWrite(8, HIGH);
delay(500);delay(500);
digitalWrite(12, LOW);digitalWrite(8, LOW);
digitalWrite(11, HIGH);digitalWrite(10, HIGH);
delay(1000);delay(1000);
digitalWrite(11, LOW);digitalWrite(10, LOW);
digitalWrite(12, HIGH);digitalWrite(8, HIGH);
delay(500);delay(500);
digitalWrite(12, LOW);digitalWrite(8, LOW);
digitalWrite(23, HIGH);
delay(1000);
digitalWrite(23, LOW);
}