using System;

public class Program

{

    public static void Main()

    {

        string name;

        double grade1;

        double grade2;

        double grade3;

        double grade4;

        double product;

        double total;

        //Ana Paola Mejia Rodriguez

        Console.WriteLine("WELCOME!!");

        Console.WriteLine( "whats your name? ");

        name = Console.ReadLine();

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

        Console.WriteLine();

        Console.WriteLine( " I WILL HELP YOU CALCULATING YOUR AVERAGE AND TELL YOU IF YOU PASSED OR NOT" );

        Console.WriteLine();

        Console.WriteLine("Whats your math grade?");

        grade1 = double.Parse(Console.ReadLine());

        Console.WriteLine("Whats your history grade?");

        grade2 = double.Parse(Console.ReadLine());

        Console.WriteLine("Whats your literature grade?");

        grade3 = double.Parse(Console.ReadLine());

        Console.WriteLine("Whats your physics grade?");

        grade4 = double.Parse(Console.ReadLine());

        product = grade1 + grade2  + grade3  + grade4 ;

        total=product/4; 

            if 

                (product>70)

        Console.WriteLine("VERY GOOD, you passed with an average of " + total);

        else if

            (product<70)

            Console.WriteLine("IM SORRY, you failed with an average of" + total);

        Console.WriteLine("GOODBYE!!");

    }

}