int merahA = 11;
int kuningA = 10;
int hijauA = 9;

int merahB = 8;
int kuningB = 7;
int hijauB = 6;

int merahC = 5;
int kuningC = 4;
int hijauC = 3;

void setup() {
  pinMode(merahA, OUTPUT);
  pinMode(kuningA, OUTPUT);
  pinMode(hijauA, OUTPUT);

  pinMode(merahB, OUTPUT);
  pinMode(kuningB, OUTPUT);
  pinMode(hijauB, OUTPUT);

  pinMode(merahC, OUTPUT);
  pinMode(kuningC, OUTPUT);
  pinMode(hijauC, OUTPUT);
}

void nyalakanLampuMerah(int pinMerah) {
  digitalWrite(pinMerah, HIGH);
}

void matikanLampu(int pinLampu) {
  digitalWrite(pinLampu, LOW);
}

void loop() {
  // Jalur A hijau, B dan C merah
  digitalWrite(hijauA, HIGH);
  digitalWrite(kuningA, LOW);
  digitalWrite(merahA, LOW);

  digitalWrite(merahB, HIGH);
  digitalWrite(kuningB, LOW);
  digitalWrite(hijauB, LOW);

  digitalWrite(merahC, HIGH);
  digitalWrite(kuningC, LOW);
  digitalWrite(hijauC, LOW);
  delay(5000);

  // Jalur A dan B kuning C Merah
  digitalWrite(hijauA, LOW);
  digitalWrite(kuningA, HIGH);
  digitalWrite(merahA, LOW);
  digitalWrite(kuningB, HIGH);
  digitalWrite(merahB, LOW);
  delay(2000);
  digitalWrite(kuningA, LOW);
  digitalWrite(merahA, HIGH);
  digitalWrite(kuningB, LOW);

  // Jalur B hijau, A dan C merah
  digitalWrite(hijauB, HIGH);
  digitalWrite(kuningB, LOW);
  digitalWrite(merahB, LOW);

  digitalWrite(merahA, HIGH);
  digitalWrite(kuningA, LOW);
  digitalWrite(hijauA, LOW);

  digitalWrite(merahC, HIGH);
  digitalWrite(kuningC, LOW);
  digitalWrite(hijauC, LOW);
  delay(5000);

  // Jalur B dan C kuning A Merah
  digitalWrite(hijauB, LOW);
  digitalWrite(kuningB, HIGH);
  digitalWrite(merahB, LOW);
  digitalWrite(kuningC, HIGH);
  digitalWrite(merahC, LOW);
  delay(2000);
  digitalWrite(kuningB, LOW);
  digitalWrite(merahB, HIGH);
  digitalWrite(kuningC, LOW);
  
  // Jalur C hijau, A dan B merah
  digitalWrite(hijauC, HIGH);
  digitalWrite(kuningC, LOW);
  digitalWrite(merahC, LOW);

  digitalWrite(merahA, HIGH);
  digitalWrite(kuningA, LOW);
  digitalWrite(hijauA, LOW);

  digitalWrite(merahB, HIGH);
  digitalWrite(kuningB, LOW);
  digitalWrite(hijauB, LOW);
  delay(5000);

  // Jalur C kuning
  digitalWrite(hijauC, LOW);
  digitalWrite(kuningC, HIGH);
  digitalWrite(merahC, LOW);
  digitalWrite(kuningA, HIGH);
  digitalWrite(merahA, LOW);
  delay(2000);
  digitalWrite(kuningC, LOW);
  digitalWrite(merahC, HIGH);
}