text: #pragma once
  
  #include <string>
  #include <iostream>
  #include "Observer.h"
  
  class ConcreteObserver: public Observer {
  private:
  	std::string nombre;
  public:
  	ConcreteObserver(std::string nombre);
  	virtual ~ConcreteObserver();
  	virtual void update(Subject*) override;
  };
  
  