#include <iostream>

using namespace std;

int main()
{
    int a, b, wybor;
    do
    {
        cout << "Wpisz dwie liczby calkowite: ";
        cin >> a >> b;

        cout << "MENU\n";
        cout << "Wybierz opcje, ktora chcesz wybrac:\n";
        cout << "\t1 - dodawanie\n";
        cout << "\t2 - odejmowanie\n";
        cout << "\t3 - mnozenie\n";
        cout << "\t4 - dzielenie\n";
        cout << "\t0 - wyjdz z programu\n";
        cin >> wybor;
        switch(wybor)
        {
        case 1:
            cout << a << " + " << b << " = " << a + b << endl;
            break;
        case 2:
            cout << a << " - " << b << " = " << a - b << endl;
            break;
        case 3:
            cout << a << " * " << b << " = " << a * b << endl;
            break;
        case 4:
            cout << a << " / " << b << " = " << 1.0 * a / b << endl;
            if(b == 0)
                cout << "Nie mozna dzielic przez 0\n";
            break;
        case 0:
            return 0;
        default:
            cout << "Wybrales nieprawidlowa komende\n";
        }
    } while(true);
}