#include <iostream>

using namespace std;

	template <class t>
	t rechner (t test1) {
		t shit;
		for (typename t :: iterator i=test1.begin (); i!=test1.end (); i++) {
		shit++;
		}
		return shit;
	}
int main () {

	string bs = "Hallo";
	string out = rechner (bs);
	cout << out;
}