#include <iostream>
using namespace std;

int main() {


	long long int a = 5;
	long long int &ref = a;

	printf("%d = a\n",  sizeof(a));
	printf("%d = ref\n",  sizeof(ref));
	printf("%d = &ref\n",  sizeof(&ref));
	
	printf("%p = &a\n",  &a);
	printf("%p = &ref\n",  &ref);

	return 0;
}