using System;

public class Program

{

    public static void Main()

    {

        int value;

    int x = 0;

    int total = 0;

    int ans;

    while (x != 5)

    {

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

    x++;

    total += value;

    }

    ans = total / x;

    Console.Write("Average {0}\n", ans);

​

    }

}