//
//  main.cpp
//  HalloWelt
//
//  Created by Jannis Seemann on 06.06.17.
//  Copyright © 2017 Jannis Seemann. All rights reserved.
//

#include <iostream>
#include <string>

using namespace std;

int main(int argc, const char * argv[]) {
    string firstname;
    cin >> firstname;

    cout << "Hallo " << firstname << "!";


    /*
    double a;
    double b;

    cin >> a;
    cin >> b;

    double sum = a + b;
    cout << sum << endl;
     */
}