using System;

//AporRyanLee   

​

namespace GradingSystem

{

    public class Program

    {   

        public static void Main()

        {

            double A;

            Console.Write("Enter Makabayan Grade: ");

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

            double B;

            Console.Write("Enter Science Grade: ");

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

            double C;

            Console.Write("Enter Math Grade: ");

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

            double D;

            Console.Write("Enter English Grade: ");

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

            double sad = (A+B+C+D)/4;

            Console.WriteLine("The Average Grade is : " + sad);

            Console.ReadLine();

        }

    }

}