#include <iostream>
using namespace std;
 
class Member
{
public:
	Member() { std::cout << " iam member!" << std::endl; }
};
 
class A
{
public:
	A() { std::cout << " A" << std::endl; }
};
 
class B
{
public:
	B() { std::cout << " B" << std::endl; }	
};
 
class C
{
public:
	C() { std::cout << " C" << std::endl; }	
};
 
 
class D : public A,  public virtual B
{
	Member m;
 
public:
	D() { std::cout << " D" << std::endl; }
};
 
 
 
 
int main() {
	D d;
 
	return 0;
}

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