#include <iostream>
using namespace std;

class A
{
protected:
    int a;
    int b;
public:
    A(int aa, int bb) :a(aa), b(bb) {}
    ~A()
    {
        cout << "D A!" << endl;
    }
};

class B :public A
{
public:
    B(int aa, int bb) :A(aa, bb) {}
    void operator ++()
    {
        int tmp = a, tmp2 = b;
        ++a; ++b;
        cout << "a= " << tmp << " b= " << tmp2 << endl;
    }
    void operator ++(int)
    {
        ++a; ++b;
        cout << "a=" << a << " b=" << b << endl;
    }
    void show()
    {
        cout << "a= " << a << " b= " << b << endl;
    }
    ~B()
    {
        cout << "D B!" << endl;
    }
};


int main()
{
    B a(0, 1);
    a.show();
    a++;
    ++a;
    a.show();
    system("pause");
    return 0;
}