#include <iostream>
#include <cstring>
#include <cstdlib>

using namespace std;

class A
{
public:
    int x;

private:
    int y;

public:
    A(int x, int y)
    // A()
    {
        cout << "A(int x,int y)" << endl;
        // cout << "A()" << endl;
    }
    ~A()
    {
        cout << "~A()" << endl;
    }
};

class B : public A
{
private:
    int y;

public:
    B() : A(1, 2)
    {
        cout << "B()" << endl;
    }
    ~B()
    {
        cout << "~B()" << endl;
    }
};

int main()
{
    cout << "A size is " << sizeof(A) << endl;
    cout << "B size is " << sizeof(B) << endl;

    B b1; // A() B() ~B() ~A()

    // A a;

    return 0;
}