// while loop
// sama seperti foor loop tapi tidak menggunakan nilai index yang sama
// untuk penulisannya:
// while(syarat){
// perintah 1
// perintah 1
// }

const int ledm = 4;
const int ledk = 5;
const int ledh = 6;

void setup() {
  pinMode(ledm, OUTPUT);
  pinMode(ledk, OUTPUT);
  pinMode(ledh, OUTPUT);
  Serial.begin(9600);
}
void loop() {
  int i = 1;
  while(i<=3){
    digitalWrite(ledm, HIGH);
    delay(500);
    digitalWrite(ledm, LOW);
    delay(500);
    Serial.println(i);
    i++;
  }
  int j = 1;
  while(j<=2){
    digitalWrite(ledk, HIGH);
    delay(500);
    digitalWrite(ledk, LOW);
    delay(500);
    Serial.println(j);
    j++;
  }
  int k = 1;
  while(k<=5){
    digitalWrite(ledh, HIGH);
    delay(500);
    digitalWrite(ledh, LOW);
    delay(500);
    Serial.println(k);
    k++;
  }
}