using System;

    public class Program 

    {

        public static void Main(string[] args)

        {

            int Makabayan;

            int Science;

            int Math;

            int English;

            Console.WriteLine("Enter Makabayan grade: ");

            Makabayan= int.Parse(Console.ReadLine());

            Console.WriteLine("Enter Science grade: ");

            Science= int.Parse(Console.ReadLine()); 

            Console.WriteLine("Enter Math grade: ");

            Math= int.Parse(Console.ReadLine());

            Console.WriteLine("Enter English grade: ");

            English= int.Parse(Console.ReadLine());

            double z = Makabayan + Science + Math + English;

            Console.WriteLine("Total Average is: " + z /4);

    }

}