void setup() {
  // put your setup code here, to run once:
  int mun = 3000;
  int * per;
  per = &mun;
  int mun2 = mun;

  Serial.begin(115200);
  Serial.println(*per);
  Serial.println(mun);
  mun = 1000;
  Serial.println(int(&per));
  Serial.println(*per);
  Serial.println(mun);
  Serial.print(int(&mun));
  Serial.println(int(&mun2));

}

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