#define LED_hijau 13
#define LED_biru 12
#define LED_merah 11
#define tombol 7

int status = 0;

void setup() {

pinMode(LED_hijau, OUTPUT);
pinMode(tombol, INPUT);
pinMode(LED_biru, OUTPUT);
pinMode(LED_merah, OUTPUT);
digitalWrite(LED_hijau, LOW);
digitalWrite(LED_biru, LOW);
digitalWrite(LED_merah, LOW);
}

void loop() {
  if(digitalRead(tombol) == HIGH) {
    status++;
    delay(100);
  }

  if(status == 1){
    digitalWrite(LED_hijau, HIGH);
  }
  else if (status == 2){
    digitalWrite(LED_biru, HIGH);
  }
  else if (status == 3){
    digitalWrite(LED_merah, HIGH);
  }
  else if(status == 4){
    status = 0;
  }
  else{
    digitalWrite(LED_hijau, LOW);
    digitalWrite(LED_biru, LOW);
    digitalWrite(LED_merah, LOW);
  }

}