#include <iostream>
using namespace std;

int main() {
	int arr[3] = {0,1,2};
	
	cout << "arr[0] = " << arr[0] << endl;
	cout << "arr[1] = " << arr[1] << endl;
	cout << "arr[2] = " << arr[2] << endl << endl;
	
	int *first = &arr[0];
	*first = 5;
	
	int &second = arr[1];
	second = 10;
	
	int third = arr[2];
	third = 15;
	
	cout << "arr[0] = " << arr[0] << endl;
	cout << "arr[1] = " << arr[1] << endl;
	cout << "arr[2] = " << arr[2] << endl;
	
	return 0;
}