using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        int a,b,c;

        a=1;

        b=2;

        c=3;

        a = (a + 5 )* a;

        b = b + 2 * a;

        Console.WriteLine(a);

        Console.WriteLine(b);

        Console.WriteLine(c);

    }

}