#include "headerFile.h"
#include <iostream>

using namespace std;

int main(){
    cin >> a >> b;

    fooForDet(&a, &b);
    cout << a << ' ' << b << '\n';

    cin >> a >> b;
    fooForDet(a, b);

    cout << a << ' ' << b;

    double k;
    cin >> k;
    foo(&k);
    cout << k << '\n';

    // by reference
    cin >> k;
    foo(k);
    cout << k;

}