/* Problem 50 */
	    #include <iostream>
	    using namespace std;

	    class a {
		char ach;
	      public:
		a(char c) { ach = c - 1; }
		~a(); // defined below
		virtual void out(ostream &os) {
		    if ('m' < ach)
			os << ach << char(ach+7) << char(ach+6) << ' ';
		    else
			os << ach << ach << ach;
		}
	    };

	    class b: public a {
		char bach;
	      public:
		b(char c1, char c2) : a(c1) { bach = c2-1; }
		void out(ostream &os) {
		    a::out(os);
		    os << ' ' << bach << char(bach + 11);
		}
	    };

	    ostream &operator<<(ostream &os, a &x)
	    {
		x.out(os);
		return os;
	    }

	    a::~a()
	    {
		cout << *this; // calls above operator
	    }

	    int main()
	    {
		b var1('n', 'e');
		a var2('o');
		cout << "Homer says: " << var1 << '\n';
		return 0;
	    }