using System;

using System.Collections.Generic;                   

public class Program

{

    public static void Main()

    {

        List <int> numbers= new List <int>();

        string a= Console.ReadLine();

        double sum=0;

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

        while (a!="")

        { 

            num= int.Parse(a);

            sum+=num;

            numbers.Add(num);

            a= Console.ReadLine();  

        }

        double av=sum/numbers.Count;

        Console.WriteLine("The sum is {0}\n av{1}",sum,av);

    }

}