#include <iostream>
using namespace std;

class Base1
{
public:
    Base1(int a = 0)
    {
        p = a; q = a + 1;
        cout << "Base1: " << p << "," << q << endl;
    }
    Base1(const Base1& r)
    {
        cout << "Base1.p: " << r.p << endl
            << "Base1.q: " << r.q << endl;
    }
    Base1& operator=(const Base1& r)
    {
        if (this != &r)
        {
            p = r.p + 1;
            q = r.q + 2;
            cout << "Base1.p: " << p << endl
                << "Base1.q: " << q << endl;
        }
        return *this;
    }
    ~Base1()
    {
        cout << "~Base1()\n";
    }
private:
    int p, q;
};
class Base2
{
public:
    Base2(int b = 0)
    {
        p = b; q = b + 1;
        cout << "Base2: " << p << "," << q << endl;
    }
    Base2(const Base2& r)
    {
        p = r.p + 1;
        q = r.q + 2;
        cout << "Base2.p: " << p << endl
            << "Base2.q: " << q << endl;
    }
    ~Base2()
    {
        cout << "~Base2()\n";
    }
protected:
    int p, q;
};

class Der : protected Base2, public Base1
{
public:
    Der(int a = 2, int b = 1, int c = 1) : Base1(a), Base2(b), m(1)
    {
        p = c; q = a - b;
        n = Base2(8);
        cout << "Der: " << p << "," << q << endl;
    }
    Der(const Der& r)
    {
        cout << "Der::Der(const Der& r)\n";
        p = r.p + 3; q = r.q + 2;
        cout << "Der.p: " << p << endl
            << "Der.q: " << q << endl;
    }
    Der& operator=(const Der& r)
    {
        cout << "Der::operator=()\n";
        if (this != &r)
        {
            Base1::operator=(r);
            Base2::p = r.p + 1;
            Base2::q = r.q + 2;
            p = r.p; q = r.q;
            m = r.m;
            n = r.n;
        }
        return *this;
    }
    ~Der()
    {
        cout << "~Der()\n";
    }
private:
    int p, q;
    Base1 m;
    Base2 n;
};

int main()
{
    Der x(1, 3, 5), y(2, 4);
    Der z = x;
    z = y;
    return 0;
}