int lampu_merah_atas = 8;
int lampu_kuning_atas = 9;
int lampu_hijau_atas = 10;
int lampu_merah_kiri = 13;
int lampu_kuning_kiri = 12;
int lampu_hijau_kiri = 11;
int lampu_merah_bawah = 4;
int lampu_kuning_bawah = 3;
int lampu_hijau_bawah = 2;
int lampu_merah_kanan = 7;
int lampu_kuning_kanan = 6;
int lampu_hijau_kanan = 5;

void setup() {
  pinMode(lampu_merah_atas, OUTPUT);
  pinMode(lampu_kuning_atas, OUTPUT);
  pinMode(lampu_hijau_atas, OUTPUT);
  pinMode(lampu_merah_kiri, OUTPUT);
  pinMode(lampu_kuning_kiri, OUTPUT);
  pinMode(lampu_hijau_kiri, OUTPUT);
  pinMode(lampu_merah_bawah, OUTPUT);
  pinMode(lampu_kuning_bawah, OUTPUT);
  pinMode(lampu_hijau_bawah, OUTPUT);
  pinMode(lampu_merah_kanan, OUTPUT);
  pinMode(lampu_kuning_kanan, OUTPUT);
  pinMode(lampu_hijau_kanan, OUTPUT);

}

void loop() {
  digitalWrite(lampu_merah_bawah, HIGH);
  digitalWrite(lampu_merah_kanan, HIGH);
  digitalWrite(lampu_merah_kiri, HIGH);
  digitalWrite(lampu_hijau_atas, HIGH);
  delay(5000);
  digitalWrite(lampu_hijau_atas, LOW);
  digitalWrite(lampu_kuning_atas, HIGH);
  delay(2000);
  digitalWrite(lampu_merah_atas, HIGH);
  digitalWrite(lampu_kuning_atas, LOW);
  delay(1000);
  digitalWrite(lampu_merah_kiri, LOW);
  digitalWrite(lampu_kuning_kiri, HIGH);
  delay(2000);
  digitalWrite(lampu_kuning_kiri, LOW);
  digitalWrite(lampu_hijau_kiri, HIGH);
  delay(1000);
  digitalWrite(lampu_merah_bawah, HIGH);
  digitalWrite(lampu_merah_kanan, HIGH);
  digitalWrite(lampu_merah_atas, HIGH);
  digitalWrite(lampu_hijau_kiri, HIGH);
  delay(5000);
  digitalWrite(lampu_hijau_kiri, LOW);
  digitalWrite(lampu_kuning_kiri, HIGH);
  delay(2000);
  digitalWrite(lampu_merah_kiri, HIGH);
  digitalWrite(lampu_kuning_kiri, LOW);
  delay(1000);
  digitalWrite(lampu_merah_bawah, LOW);
  digitalWrite(lampu_kuning_bawah, HIGH);
  delay(2000);
  digitalWrite(lampu_kuning_bawah, LOW);
  digitalWrite(lampu_hijau_bawah, HIGH);
  delay(1000);
  digitalWrite(lampu_merah_atas, HIGH);
  digitalWrite(lampu_merah_kanan, HIGH);
  digitalWrite(lampu_merah_kiri, HIGH);
  digitalWrite(lampu_hijau_bawah, HIGH);
  delay(5000);
  digitalWrite(lampu_hijau_bawah, LOW);
  digitalWrite(lampu_kuning_bawah, HIGH);
  delay(2000);
  digitalWrite(lampu_merah_bawah, HIGH);
  digitalWrite(lampu_kuning_bawah, LOW);
  delay(1000);
  digitalWrite(lampu_merah_kanan, LOW);
  digitalWrite(lampu_kuning_kanan, HIGH);
  delay(2000);
  digitalWrite(lampu_kuning_kanan, LOW);
  digitalWrite(lampu_hijau_kanan, HIGH);
  delay(1000);
  digitalWrite(lampu_merah_atas, HIGH);
  digitalWrite(lampu_merah_kiri, HIGH);
  digitalWrite(lampu_merah_bawah, HIGH);
  digitalWrite(lampu_hijau_kanan, HIGH);
  delay(5000);
  digitalWrite(lampu_hijau_kanan, LOW);
  digitalWrite(lampu_kuning_kanan, HIGH);
  delay(2000);
  digitalWrite(lampu_merah_kanan, HIGH);
  digitalWrite(lampu_kuning_kanan, LOW);
  delay(1000);
  digitalWrite(lampu_merah_atas, LOW);
  digitalWrite(lampu_kuning_atas, HIGH);
  delay(2000);
  digitalWrite(lampu_kuning_atas, LOW);
  digitalWrite(lampu_hijau_atas, HIGH);
  delay(1000);
}