#include <iostream>

using namespace std;

template <typename T>
class A {
public:
    B getObj() { return obj; };
    void setObj(B bObj) { obj = bObj; };
private:
    B obj = NULL;
};

template <typename T>
class B {
public:
    T getValue() { return value; };
    void setValue(T val) { value = val; };
private:
    T value = 0;
};

int main() {
    B<int> root;
    root.setValue(9);

    cout << root.getValue() << endl;

    cin.get();
    return 0;
}