using System;

public class Program

{

    public static void Main()

        Console.WriteLine("Hello World");

        var a = 3;

        var b = 8;

        Console.WriteLine( a == b);

        Console.WriteLine( a < b );

        Console.WriteLine( a == 3 * 8);

        Console.Write("Input Grade = 4 ");

        var grade = double.Parse(Console.ReadLine());

        if ( grade >= 4)

            Console.WriteLine("The grade is Good ");

    else

    Console.WriteLine("the grade is not good")

}