void setup() {
  // put your setup code here, to run once:
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);
digitalWrite(4, HIGH);
digitalWrite(7, HIGH);
digitalWrite(10, HIGH);
digitalWrite(13, HIGH);
}

void loop() {
  // put your main code here, to run repeatedly:
jalan1(); //pendeklarasian looping berulang
}

void jalan1(){
  digitalWrite(2, LOW); 
  digitalWrite(3, LOW);
  digitalWrite(4, HIGH);

  digitalWrite(5, HIGH);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);

  digitalWrite(8, HIGH);
  digitalWrite(9, LOW);
  digitalWrite(10, LOW);
  delay(1000);
  
  digitalWrite(2, LOW); 
  digitalWrite(3, HIGH);
  digitalWrite(4, LOW);

  digitalWrite(5, LOW);
  digitalWrite(6, HIGH);
  digitalWrite(7, LOW);

  digitalWrite(8, HIGH);
  digitalWrite(9, LOW);
  digitalWrite(10, LOW);
  delay(2000);

  digitalWrite(2, LOW); 
  digitalWrite(3, LOW);
  digitalWrite(4, HIGH);

  digitalWrite(5, HIGH);
  digitalWrite(6, LOW);
  digitalWrite(7, LOW);

  digitalWrite(8, HIGH);
  digitalWrite(9, LOW);
  digitalWrite(10, LOW);
  delay(1000);
}