using System;

public class Program

{

    static double Average()

    {

        Console.WriteLine("Enter in First Mark: ");

        int imark1 = int.Parse(Console.ReadLine());

        Console.WriteLine("Enter in Second Mark: ");

        int imark2 = int.Parse(Console.ReadLine());

        return (imark1 + imark2)/2.0;

    }

    public static void Main()

    {

        Console.WriteLine("Your Average is: " + Average().ToString());

    }

}