using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("What 4 numbers would you like to find the average of?");

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

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

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

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

        double output = ave(w, x, y, z);

        Console.WriteLine("The average of these 4 numbers is " + output + ".");

    }

    static private double ave(double w, double x, double y, double z)

    {

    return (w + x + y + z)/4;

    }

}

​

​

​