#include <iostream>
#include <cstdlib>
using namespace std;

int a[] = {10, 20, 30};
const size_t n = sizeof a / sizeof a[0];

typedef int *array_iterator;
inline array_iterator begin() {return a;}
inline array_iterator   end() {return a + n;}

int main()
{
	for (array_iterator it = begin(); it != end(); ++it) {
		cout << *it << "\n";
	}

	return EXIT_SUCCESS;
}