#include <iostream>

using namespace std;

template<typename T>

void Swapping(T *t1, T *t2)
{
    T temp=*t1;
    *t1=*t2;
    *t2=temp;
}

int main()
{
    string a="as";
    string b="sa";

    cout << "A: " << a << " B: " << b << endl;

    Swapping(&a, &b);

    cout << "A: " << a << " B: " << b << endl;

    return 0;
}