using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Please enter 5 numbers. Enter each after you press enter.");

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

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

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

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

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

        int avg = (x + y + z + a + d)/5;

        Console.WriteLine(avg.ToString("##.##"));

        Console.WriteLine("The average of " + x + ", " + y + ", " + z + ", " + a + ", and " + d + " is " +avg+ ".");

    }

}