#ifndef __protection_a
#define __protection_a

#include <iostream>

using namespace std;

class A {

 public:
  void public_print(){ cout <<  "public print!" << endl;}
 protected:
  void protected_print(){ cout <<  "protected print!" << endl;}
 private:
  void private_print(){ cout << "private print!" << endl;}

public:
    void call_all_by_A(){
    cout << endl << "all A can call: " << endl;
    public_print();
    protected_print();
    private_print();
  }
  
};

#endif