9.5B

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

int main() {
    int a, b;
    std::cin >> a >> b;
    int *ptra = &a, *ptrb = &b;
    std::cout << *ptra << ' ' << *ptrb << std::endl;
    swap(ptra, ptrb);
    std::cout << *ptra << ' ' << *ptrb << std::endl;
}