#include <iostream>


class Shared : public std::enable_shared_from_this<Shared>{
public:
	int prea;
};

class Widget : public virtual Shared{
	int a;
public:
	~A(){
		a = 7;
	}
};

class Container : virtual public Widget{
};

class List : private Container, virtual public Widget{
public:
	int c;
};


int main(int argc, char** argv){
	auto c = std::make_shared<List>();
	c->c = 3;

	std::cout << c->c << std::endl;

	return 0;
}