using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Please enter a grade between 0 and 100");

        {start;

string = byte grade=Console.ReadLine();

if ("grade >=0 && < 65")

            Console.WriteLine("You failed");

 else if (grade >=65 && Grade <=100);

Console.WriteLine("You passed");

 else

Console.WriteLine("Please Enter a Valid Number");

if ("Goto = start"));

        }

​

    }

}