using System;

public class Program

{

    public static void Main()

    {

        double a, b, c, d, e, f, g, h, sum ;

        Console.WriteLine("Enter module E grade please");

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

        Console.WriteLine("Enter module G grade please");

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

        Console.WriteLine("Enter module F (literature) grade please");

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

        Console.WriteLine("Enter COBE grade please");

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

        e = (0.27)* a;

        f = (0.27)* b;

        g = (0.26)* c;

        h = (0.2)* d;

        sum = (e+f+g+h);

        Console.WriteLine("Your final grade is: " + sum);

    }

}