void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  int z = 0;
  int y,x,a,b,c;
  
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
  int z=0;
  int c,y,x,b,a;
  
  while(x<13){
    c = z % 60;
    //y = z % 3600;
    //b = y / 60;
    x=10;
    b=59;
   // x = z / 3600;

    delay(1000);
    Serial.print(x);Serial.print(":");Serial.print(b);Serial.print(":");Serial.println(c);
    z=z+1;
  }
  
  
}