using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace atcoder1124
{
    class Program
    {
        static void Main(string[] args)
        {
            List<float> frames = new List<float>();
            int sumbnail;
            var ave = frames.Average();
            if (ave - Math.Floor(ave) != 0)
                sumbnail = (int)frames[(int)(ave - ave % 1)];
            else
                sumbnail = (int)ave;

            Console.WriteLine(sumbnail.ToString());
        }
    }