#include <iostream>

using namespace std;

void zamiana (int *x, int *y)
{
    int z = *x;
    *x = *y;
    *y = z;
}

int main()
{
    int a;
    int b;
    cout << "Podaj wartosc a: " << endl;
    cin >> a;
    cout << "Podaj wartosc b: " << endl;
    cin >> b;

    cout << "Przed zmina wartosc a wynosi " << a << ", natomiast wartosc b wynosi " << b << endl;

    zamiana(&a, &b);

    cout << "a = " << a << endl;
    cout << "b = " << b << endl;
    return 0;
}