// Muhammad Rivaldi Jefri
// 221011041
// Sensor

int status = 0;
void setup() {
    // put your setup code here, to run once:
  pinMode(10, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(7, INPUT);
  digitalWrite(10, LOW);
  digitalWrite(9, LOW);
  digitalWrite(8, LOW);
  }

void loop() {
  // put your main code here, to run repeatedly:
  if (digitalRead(7) == HIGH){
    status++;
  }
  delay(100);
  if (status == 1){
    digitalWrite(8, HIGH);
  } else if (status == 2){
    digitalWrite(9, HIGH);
  } else if (status == 3){
    digitalWrite(10, HIGH);
  } else if (status == 4){
    status = 0;
  }
  else {
    digitalWrite(8, LOW);
    digitalWrite(9, LOW);
    digitalWrite(10,LOW);
  }
}