using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter number");

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

        double sum = 0;

        double count = 0;

        if (n > 1 && n < 1000000)

            {

            while (n > 0)

                {

                int digit = n % 10;

                sum = sum + digit;

                n = n / 10;

                count++;

                }

            double avg = sum / count;

            Console.WriteLine("The average of the number is {0}", avg);

            }

    }

}