unsigned long i, Jumlah=2;
unsigned int Maximum = 5;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(10, OUTPUT);
  for (i=0;i<5;i++){
    Jumlah++;
    Jumlah = Jumlah * Maximum;
    digitalWrite(10,!digitalRead(10));
    delay(500);
  }

}

void loop() {
  // put your main code here, to run repeatedly:
  Serial.println(Jumlah);
  delay(1000);

}