using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Please enter the 4 numbers you would like to know the average of.");

        double ans1 = double.Parse(Console.ReadLine());

        double ans2 = double.Parse(Console.ReadLine());

        double ans3 = double.Parse(Console.ReadLine());

        double ans4 = double.Parse(Console.ReadLine());

        Console.Clear();

        double output = average( ans1, ans2, ans3, ans4);

        Console.WriteLine(" The average of the numbers, " + ans1 + ", " + ans2 + ", " + ans3 + ", " + ans4 + " is " + output);

    }

    static private double average(double a, double b , double c, double d)

    { double added = a + b + c + d;

     double average = added/4;

     return average;

    }

}