#include <tuple>
#include <iostream>

using namespace std;

// make a function that returns multiple values

int main() {
    tuple<int, int> c = make_tuple(5, 4);
    cout << get<0>(c) << endl;

    int a = 0;
    int b = 1;
    cout << a << endl;
    cout << b << endl;
    // swap a, b
    // get a,b from func ...
}