#include <iostream.h>

struct VIStream {
    virtual void Input(int& i){}
};

template <class T>
struct TVIStream : VIStream {
    T&  m_t;
    TVIStream(T& t) : m_t(t) {}
    virtual void Input(int& i){m_t >> i;}
};

class Test {
    int i;
public:
    void Input(VIStream& v){v.Input(i);}
};

template <class T>
T& operator>>(T& t,Test& a)
{
    TVIStream<T> v(t);
    a.Input(v);
    return t;
}

int main()
{
    Test    t;
    cin >> t;
    return 0;
}