void setup() {
  pinMode(0, OUTPUT);
  pinMode(1, OUTPUT);
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);
  pinMode(14, OUTPUT);
  pinMode(15, OUTPUT);
  pinMode(16, OUTPUT);
  pinMode(17, OUTPUT);
  pinMode(18, OUTPUT);
  pinMode(19, OUTPUT);
  pinMode(20, OUTPUT);
  pinMode(21, OUTPUT);
  pinMode(22, OUTPUT);
  pinMode(23, OUTPUT);



}
void loop() {
  // Turn pins 0-24 ON (HIGH)
  digitalWrite(0, HIGH);
  delay(100);
  digitalWrite(1, HIGH);
  delay(100);
  digitalWrite(2, HIGH);
    delay(100);

  digitalWrite(3, HIGH);
    delay(100);

  digitalWrite(4, HIGH);
    delay(100);

  digitalWrite(5, HIGH);
    delay(100);

  digitalWrite(6, HIGH);
    delay(100);

  digitalWrite(7, HIGH);
    delay(100);

  digitalWrite(8, HIGH);
    delay(100);

  digitalWrite(9, HIGH);
    delay(100);

  digitalWrite(10, HIGH);
    delay(100);

  digitalWrite(11, HIGH);
    delay(100);

  digitalWrite(12, HIGH);
    delay(100);

  digitalWrite(13, HIGH);
    delay(100);

  digitalWrite(14, HIGH);
    delay(100);

  digitalWrite(15, HIGH);
    delay(100);

  digitalWrite(16, HIGH);
    delay(100);

  digitalWrite(17, HIGH);
    delay(100);

  digitalWrite(18, HIGH);
    delay(100);

  digitalWrite(19, HIGH);
    delay(100);

  digitalWrite(20, HIGH);
    delay(100);

  digitalWrite(21, HIGH);
    delay(100);

  digitalWrite(22, HIGH);
    delay(100);

  digitalWrite(23, HIGH);
    delay(100);

  digitalWrite(24, HIGH);
  delay(1000); 


}