using System;

public class Program

{

    public static void Main()

    {

        int a,b,c;

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

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

        c=(a+b)/2;

        Console.WriteLine(" the average value of {0}  and {1} is {2}",a,b,c);

    }

}