int m1 =13;
int k1 =12;
int h1 =11;
int m2 =10;
int k2 =9;
int h2 =8;
int m3 =7;
int k3 =6;
int h3 =5;
int m4 =4;
int k4 =3;
int h4 =2;
void setup() {
  // put your setup code here, to run once:
pinMode(m1, OUTPUT);
pinMode(k1, OUTPUT);
pinMode(h1, OUTPUT);
pinMode(m2, OUTPUT);
pinMode(k2, OUTPUT);
pinMode(h2, OUTPUT);
pinMode(m3, OUTPUT);
pinMode(k3, OUTPUT);
pinMode(h3, OUTPUT);
pinMode(m4, OUTPUT);
pinMode(k4, OUTPUT);
pinMode(h4, OUTPUT);
}

void loop() {
//lampu merah 1
digitalWrite(m1, LOW);
digitalWrite(k1, LOW);
digitalWrite(h1, HIGH);
digitalWrite(m2, HIGH);
digitalWrite(k2, LOW);
digitalWrite(h2, LOW);
digitalWrite(m3, HIGH);
digitalWrite(k3, LOW);
digitalWrite(h3, LOW);
digitalWrite(m4, HIGH);
digitalWrite(k4, LOW);
digitalWrite(h4, LOW);
delay(3000);
//lampu merah untuk kuning
digitalWrite(m1, LOW);
digitalWrite(k1, HIGH);
digitalWrite(h1, LOW);
digitalWrite(m2, LOW);
digitalWrite(k2, HIGH);
digitalWrite(h2, LOW);
digitalWrite(m3, LOW);
digitalWrite(k3, HIGH);
digitalWrite(h3, LOW);
digitalWrite(m4, LOW);
digitalWrite(k4, HIGH);
digitalWrite(h4, LOW);
delay(1000);
//lampu merah 2
digitalWrite(m1, HIGH);
digitalWrite(k1, LOW);
digitalWrite(h1, LOW);
digitalWrite(m2, LOW);
digitalWrite(k2, LOW);
digitalWrite(h2, HIGH);
digitalWrite(m3, HIGH);
digitalWrite(k3, LOW);
digitalWrite(h3, LOW);
digitalWrite(m4, HIGH);
digitalWrite(k4, LOW);
digitalWrite(h4, LOW);
delay(3000);
//lampu merah untuk kuning
digitalWrite(m1, LOW);
digitalWrite(k1, HIGH);
digitalWrite(h1, LOW);
digitalWrite(m2, LOW);
digitalWrite(k2, HIGH);
digitalWrite(h2, LOW);
digitalWrite(m3, LOW);
digitalWrite(k3, HIGH);
digitalWrite(h3, LOW);
digitalWrite(m4, LOW);
digitalWrite(k4, HIGH);
digitalWrite(h4, LOW);
delay(1000);
  // lampu merah 3:
digitalWrite(m1, HIGH);
digitalWrite(k1, LOW);
digitalWrite(h1, LOW);
digitalWrite(m2, HIGH);
digitalWrite(k2, LOW);
digitalWrite(h2, LOW);
digitalWrite(m3, LOW);
digitalWrite(k3, LOW);
digitalWrite(h3, HIGH);
digitalWrite(m4, HIGH);
digitalWrite(k4, LOW);
digitalWrite(h4, LOW);
delay(3000);
//lampu merah untuk kuning
digitalWrite(m1, LOW);
digitalWrite(k1, HIGH);
digitalWrite(h1, LOW);
digitalWrite(m2, LOW);
digitalWrite(k2, HIGH);
digitalWrite(h2, LOW);
digitalWrite(m3, LOW);
digitalWrite(k3, HIGH);
digitalWrite(h3, LOW);
digitalWrite(m4, LOW);
digitalWrite(k4, HIGH);
digitalWrite(h4, LOW);
delay(1000);
  // lampu merah 4:
digitalWrite(m1, HIGH);
digitalWrite(k1, LOW);
digitalWrite(h1, LOW);
digitalWrite(m2, HIGH);
digitalWrite(k2, LOW);
digitalWrite(h2, LOW);
digitalWrite(m3, HIGH);
digitalWrite(k3, LOW);
digitalWrite(h3, LOW);
digitalWrite(m4, LOW);
digitalWrite(k4, LOW);
digitalWrite(h4, HIGH);
delay(2000);
//lampu merah untuk kuning
digitalWrite(m1, LOW);
digitalWrite(k1, HIGH);
digitalWrite(h1, LOW);
digitalWrite(m2, LOW);
digitalWrite(k2, HIGH);
digitalWrite(h2, LOW);
digitalWrite(m3, LOW);
digitalWrite(k3, HIGH);
digitalWrite(h3, LOW);
digitalWrite(m4, LOW);
digitalWrite(k4, HIGH);
digitalWrite(h4, LOW);
delay(1000);
}