#include <iostream>
using namespace std;
 
class Vector {
 public:
  int x;
  int y;
  int z;
 
  Vector operator+(const Vector& other) {
    Vector c;
    c.x = this->x + other.x;
    c.y = this->y + other.y;
    c.z = this->z + other.z;
    return c;
  }
};
 
int main() {
  Vector x, y, z;
 
  x.x = 1;
  x.y = 2;
  x.z = 3;
 
  y.x = 4;
  y.y = 5;
  y.z = 6;
 
  z = x + y;
 
  cout << x.x << " " << x.y << " " << x.z << endl;
  cout << y.x << " " << y.y << " " << y.z << endl;
  cout << z.x << " " << z.y << " " << z.z << endl;
 
  return 0;
}

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