#include <iostream>

#include <conio.h>

using namespace std; 

int main()

{

  int x = 12;

  int y = 5;

  int tong, hieu, tich, thuong;

  tong = x + y;

  hieu = x - y;

  tich = x * y;

  thuong = x / y;

  cout << "Tong cua " << x << " va " << y << " la " << tong << "." << endl;

  cout << "Hieu cua " << x << " va " << y << " la " << hieu << "." << endl;

  cout << "Tich cua " << x << " va " << y << " la " << tich << "." << endl;

  cout << "Thuong cua " << x << " va " << y << " la " << thuong << "." << endl;

  return 0;