int lightblue = 10;
int green = 5 ;
int angka = 1;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(lightblue, OUTPUT);
  pinMode(green, OUTPUT);

  while(angka <= 10000){
   Serial.println(angka);
   angka++2;
   delay(500);
  }
  Serial.println("done");
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}