#ifndef C_H
#define C_H

class A
{
public:
    int a, b, c;
};

class C
{
public:
    int x, y, z;
    virtual void f () { }
};

class D : virtual public C
{
public:
    int w;
};

class E : virtual public C
{
public:
    int v;
};

class Z : public D, public E
{
    int vw;
};


#endif // C_H