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

int main() 
{
	string s1("HALLO");
	string s2("Hallo"); 
	string s3[3] = {"Eins","Zwei","Drei"};
	cout << "Die Stringlaenge von " << s1 << " ist " 
		<< s1.size() << endl;
	string s4 = s3[2] + s3[1] + s3[0];
	cout << "Konkatenation: "<< s4 << endl;
	cout << "Vergleich von " 
		<< s1 << " und " << s2 << " liefert "
		<< s1.compare(s2) << endl;
	if (s1==s1) cout << "HALLO!" << endl;
	return 0;
}