void setup() {
  // put your setup code here, to run once:
  //jalur satu
pinMode(1, OUTPUT);//merah
pinMode(2, OUTPUT);//kuning
pinMode(3, OUTPUT);//hijau
//jalur dua
pinMode(4, OUTPUT);//merah
pinMode(5, OUTPUT);//kuning
pinMode(6, OUTPUT);//hijau
//jalur tiga
pinMode(7, OUTPUT);//merah
pinMode(8, OUTPUT);//kuning
pinMode(9, OUTPUT);//hijau
//jalur empat
pinMode(10, OUTPUT);//merah
pinMode(11, OUTPUT);//kuning
pinMode(12, OUTPUT);//hijau

}

void loop() {
  // put your main code here, to run repeatedly:
  //jalur satu 
  digitalWrite(1, LOW);
  digitalWrite(2, LOW);
  digitalWrite(3, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, HIGH);
  digitalWrite(8, LOW);
  digitalWrite(9, LOW);
  digitalWrite(10,HIGH);
  digitalWrite(11,LOW);
  digitalWrite(12,LOW);
  delay(4000);
  digitalWrite(1, LOW);
  digitalWrite(2, HIGH);
  digitalWrite(3, LOW);
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, HIGH);
  digitalWrite(8, LOW);
  digitalWrite(9, LOW);
  digitalWrite(10,HIGH);
  digitalWrite(11,LOW);
  digitalWrite(12,LOW);
  delay(4000);
  //jalur dua
  digitalWrite(1, HIGH);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  digitalWrite(6, HIGH);
  digitalWrite(7, HIGH);
  digitalWrite(8, LOW);
  digitalWrite(9, LOW);
  digitalWrite(10,HIGH);
  digitalWrite(11,LOW);
  digitalWrite(12,LOW);
  delay(4000);
  digitalWrite(1, HIGH);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, HIGH);
  digitalWrite(6, LOW);
  digitalWrite(7, HIGH);
  digitalWrite(8, LOW);
  digitalWrite(9, LOW);
  digitalWrite(10,HIGH);
  digitalWrite(11,LOW);
  digitalWrite(12,LOW);
  delay(4000);
  //jalur tiga
  digitalWrite(1, HIGH);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, LOW);
  digitalWrite(9, HIGH);
  digitalWrite(10,HIGH);
  digitalWrite(11,LOW);
  digitalWrite(12,LOW);
  delay(4000);
  digitalWrite(1, HIGH);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);
  digitalWrite(8, HIGH);
  digitalWrite(9, LOW);
  digitalWrite(10,HIGH);
  digitalWrite(11,LOW);
  digitalWrite(12,LOW);
  delay(4000);
  //jalur empat
  digitalWrite(1, HIGH);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, HIGH);
  digitalWrite(8, LOW);
  digitalWrite(9, LOW);
  digitalWrite(10,LOW);
  digitalWrite(11,LOW);
  digitalWrite(12,HIGH);
  delay(4000);
  digitalWrite(1, HIGH);
  digitalWrite(2, LOW);
  digitalWrite(3, LOW);
  digitalWrite(4, HIGH);
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, HIGH);
  digitalWrite(8, LOW);
  digitalWrite(9, LOW);
  digitalWrite(10,LOW);
  digitalWrite(11,HIGH);
  digitalWrite(12,LOW);
  delay(4000);

}