main.cpp

#include <stdio.h>
#include <stdlib.h>
#include <iostream>
#include <exception>
#include <sstream>

using namespace std;

class A{
	public:
		A(){
			cout << "A";
		}
};

class B: public A{
	public:
		B(){
			cout << "B";
		}
};

class G: public A{
	public:
		G(){
			cout << "G";
		}
};
class F: public B, public G{
	public:
		F(){
			cout << "F";
		}
};class C: public B{
	public:
		C(){
			cout << "C";
		}
};
class D: public A, public B, public C, public F{
	public:
		D(){
			cout << "D";
		}
};
class E: public D{
	public:
		E(){
			cout << "E";
		}
};

int main(){
 E e;
 return 0; 
}