#ifndef CVECTOR_H
#define CVECTOR_H
#include <ostream>
using namespace std;

class CVector {
  private:
    int x,y;
  public:
    CVector () {};
    CVector (int,int);
    CVector operator + (const CVector &) const;
    friend ostream & operator<< (ostream &, const CVector &);
};
#endif