using System;

public class Program

{

    public static void Main()

    {

    //Luis

        string name;

        Console.WriteLine("Hello! what´s your name?");

        name = Console.ReadLine();

        Console.WriteLine("Nice to meet you, " +name);

         Console.WriteLine("I will help you calculating your average");

         Console.WriteLine("give me the ratings");

         Console.WriteLine("What's your Math grade?");

         Console.ReadLine();

         Console.WriteLine("What's your Literature grade?");

         Console.ReadLine();

         Console.WriteLine("What's your Physics grade?");

         Console.ReadLine();

         Console.WriteLine("What's your History grade?");

         Console.ReadLine();

           Console.ReadLine("Very good!"  ,80);

          Console.ReadLine("Good"  ,70);

          Console.Readline("Ok"  ,70)

    }

}