using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Solution
{
    public class Program
    {
        static void Main()
        {
            string s = Console.ReadLine();
            //string[] t = s.Split(' ');
            //int a = int.Parse(t[0]);
            //int b = int.Parse(t[1]);
            //s = Console.ReadLine();
            Console.WriteLine("Hello World!");

        }
    }
}