#include <iostream>
using namespace std;

int globalVal = 5;

int m1(int *&p)
{
	p = &globalVal;	
}

int m2(int *p)
{
	p = &globalVal;	
}


int main() {

	int *p = NULL;
	
	m2(p);
	
	if(!p)
		cout << "NULL 1" << endl;
	else
		cout << "NOT NULL 1" << endl;
	
	m1(p);
	
	if(!p)
		cout << "NULL 2" << endl;
	else
		cout << "NOT NULL 2" << endl;
	

	return 0;
}