#ifndef NUT_H
#define NUT_H

#include <iostream>
using namespace std;

class Nut
{
   private:
	int k;
   friend ostream& operator<< (ostream&,const Nut&);
};

ostream& operator<< (ostream& o,const Nut& n)
{	o << n.k;
	return o;
}

#endif