int merah = 12;
int hijau = 11;
int biru = 10;
int kuning = 9;
int jingga = 8;
int delayTime = 250;//Waktu perpindahan LED

void setup() {
  // put your setup code here, to run once:
  pinMode(merah, OUTPUT);
  pinMode(hijau, OUTPUT);
  pinMode(biru, OUTPUT);
  pinMode(kuning, OUTPUT);
  pinMode(jingga, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:

  for (int i = 8; i < 12; i++){
  digitalWrite(i, HIGH);
  delay(delayTime);
  digitalWrite(i, LOW);
  }

  digitalWrite(merah, LOW);
  digitalWrite(hijau, LOW);
  digitalWrite(biru, LOW);
  digitalWrite(kuning, LOW);
  digitalWrite(jingga, LOW);

  for (int i = 12; i > 8; i--){
    digitalWrite(i, HIGH);
    delay(delayTime);
    digitalWrite(i, LOW);
  }

}