What is the output of the program if characters 'h', 'e', 'l', 'l' , 'o' and enter are supplied as input?

#include <iostream>

#include <string>

using namespace std;

void f();

int main()

{

f();

return 0;

}

void f()

{

char c;

c = cin.get();

cout << c;

if(c != '\n')

f();

}