using System;
using System.Linq;
using System.Collections.Generic;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            List<int> numbers = Console.ReadLine().Split(',').Select(int.Parse).ToList();
            List<int> belowAvg = new List<int>();
            List<int> aboveAvg = new List<int>();
            numbers.Average();

            foreach (int number in numbers)
            {

                if (number < numbers.Average())
                {
                    belowAvg.Add(number);
                }

                else
                {
                    aboveAvg.Add(number);
                }
            }

            Console.WriteLine($"avg: {numbers.Average():f2}");
            Console.WriteLine($"below: {string.Join(",", belowAvg)}");
            Console.WriteLine($"above: {string.Join(",", aboveAvg)}");
        }
    }
}