#include <iostream>
using namespace std;

class A {
protected:
    int i;
public:
    A(int a) {
        i = a;
        cout  << "A's constructor called" << endl;
    };
};

class B: A {
private:
    A a_object;
public:
    B(int a):A(a), a_object(a) {
        cout << "B's constructor called";
    };

    int get_value() {
        return a_object.i;
    }
};

int main() {
    B object(10);
    cout << endl;
    //cout << object.get_value();
    return 0;
}