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);
digitalWrite(4, HIGH);
digitalWrite(5, HIGH);
digitalWrite(8, HIGH);
}

void loop() {
  // put your main code here, to run repeatedly:
jalur_satu();
jalur_dua();
jalur_tiga();
}

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

void jalur_dua(){
digitalWrite(4, LOW);
digitalWrite(2, HIGH);
delay(1000);
digitalWrite(2, LOW);
digitalWrite(3, HIGH);
delay(1000);
digitalWrite(3, LOW);
digitalWrite(4, HIGH);
}

void jalur_tiga(){
digitalWrite(5, LOW);
digitalWrite(7, HIGH);
delay(1000);
digitalWrite(7, LOW);
digitalWrite(6, HIGH);
delay(1000);
digitalWrite(6, LOW);
digitalWrite(5, HIGH);
}