using System;

public class Program

{

    static int x, y, z, p, q;

    static decimal Result;

​

    public static void Main()

    {

        x= 0;

        y= 0;

        z= 0;

        p= 0;

        q= 0;

        x= Convert.ToInt32(Console.ReadLine ());        

        y= Convert.ToInt32(Console.ReadLine ());

        z= Convert.ToInt32(Console.ReadLine ());        

        p= Convert.ToInt32(Console.ReadLine ());        

        q= Convert.ToInt32(Console.ReadLine ());        

        Result = x + y + z + p +q ;

        Result = Result / 5;

        Console.WriteLine( "Average: " + Result);   

    }

}