#include<iostream>
using namespace std;

void print_hi(){
	cout << "hi\n";
	// print_hi(); // leads to infinite "loop"
}

void print_array(int array[], int spot){
	cout << array[spot] << " ";
	if(spot < 4)
		print_array(array, spot + 1);
	cout << "\n";
}

int main(){
	print_hi();

	int array[5] = {2, 3, 5, 7, 11};
	print_array(array, 0);


	return 0;
}