int ledPin = 13;
int randomNumber;


void setup() {
  // put your setup code here, to run once:
  pinMode(ledPin, OUTPUT);
  randomSeed(analogRead(0));
  Serial.begin(9600);
}


void loop() {
  // put your main code here, to run repeatedly:
  randomNumber = random(1, 100);
 
  Serial.println(randomNumber);
  
  if(randomNumber % 5 == 0){
    Serial.println(randomNumber);
    Serial.println("ding");
    digitalWrite(ledPin, HIGH);
    delay(200);
    digitalWrite(ledPin, LOW);
    delay(100);
    
  }
  if(randomNumber % 7 == 0){
    Serial.println(randomNumber);
     Serial.println("ding ding");
    digitalWrite(ledPin, HIGH);
    delay(200);
    digitalWrite(ledPin, LOW);
    delay(100);
    digitalWrite(ledPin, HIGH);
    delay(200);
    digitalWrite(ledPin, LOW);
    delay(100);
   
  }
  if(randomNumber % 9 == 0){
    Serial.println(randomNumber);
    Serial.println("ding ding ding");
    digitalWrite(ledPin, HIGH);
    delay(200);
    digitalWrite(ledPin, LOW);
    delay(100);
    digitalWrite(ledPin, HIGH);
    delay(200);
    digitalWrite(ledPin, LOW);
    delay(100);
    digitalWrite(ledPin, HIGH);
    delay(200);
    digitalWrite(ledPin, LOW);
    delay(100);
    
  }
  delay(1000); // delay 1 detik sebelum menampilkan nomber acak selnjutnya
}