#include <iostream>
using namespace std;

void mySwap(int, int);
void mySwapRef(int &, int &);

void main(){
	int x = 13, y = 666;
	int &replicant = x;
	replicant = 64;
	cout << " addr " << &x << " " << &replicant << endl;
    mySwap(x, y);
    cout << x << " " << y << endl;
	int p=1, q=2;
	mySwapRef(p, q);
    cout << p << " " << q << endl;
}
void mySwap(int a, int b){
	int t = a;
	a = b;
	b = t;
    cout << a << " " << b << endl;
}
void mySwapRef(int& a, int &b){
	int t = a;
	a = b;
	b = t;
    cout << a << " " << b << endl;
}