using System;

​

struct Point {

    public int A;

}

​

class Client {

    public int A;

    public Client(int a) {

        A = a;

    }

}

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        // Point[] points = new Point[400000];

        Client[] clients = new Client[4000000];

        for (int idx = 0; idx < clients.Length; idx ++) {

            clients[idx] = new Client(idx);

        }

        int temp = 0;

        for (int idx = 0; idx < clients.Length; idx ++) {

            temp += clients[idx].A;

        }

        Console.WriteLine(temp);

    }

}