using System;

public class Program

{

    public static void Main(string[] args)

    {

      double[] N;

      N = new double[10];

        int x = 0;

        while (x < 10)

        {

        Console.Write("Nota:");

        N[x] = int.Parse(Console.ReadLine());

        x++;

        }

       double prom = (N[0] + N[1] + N[2] + N[3] + N[4] + N[5] + N[6] + N[7] + N[8] + N[9])/10;

        Console.Write("Promedio:"+prom);

    }

}