#include <cstring>
#include <stdlib.h>

class N
{
      public:
	char annotation[100];
	int nb;

	N(int Nb)
	{
		nb = Nb;
	}

	void setAnnotation(char *str)
	{
		memcpy(annotation, str, strlen(str));
	}

	int operator+(N const &e)
	{
		return nb + e.nb;
	}

	int operator-(N const &e)
	{
		return nb - e.nb;
	}
};

int main(int ac, char **av)
{
	if (ac <= 1)
		exit(1);

	N *a = new N(5);
	N *b = new N(6);

	N *a_ptr = a;
	N *b_ptr = b;
	a_ptr->setAnnotation(av[1]);

	return *b_ptr + *a_ptr;
}