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

namespace _04.Shellbound
{
    class Program
    {
        static void Main(string[] args)
        {
            Dictionary<string, List<int>> crabShells = new Dictionary<string, List<int>>();

            string[] inputTokens = Console.ReadLine().Split(' ');

            while (inputTokens[0] != "Aggregate")
            {
                string regionsName = inputTokens[0];
                int shellSize = int.Parse(inputTokens[1]);

                if (!crabShells.ContainsKey(regionsName))
                {
                    crabShells.Add(regionsName, new List<int>());
                }
                crabShells[regionsName].Add(shellSize);

                inputTokens = Console.ReadLine().Split(' ');
            }

            foreach (var item in crabShells)
            {
                string regionsName = item.Key;
                List<int> size = item.Value;

                for (int i = 0; i < size.Count; i++)
                {
                    for (int j = i + 1; j < size.Count; j++)
                    {
                        if (size[i] == size[j])
                        {
                            size.RemoveAt(j);
                            i = 0;
                        }
                    }
                }

                int sumOfShells = 0;
                int countOfShells = 0;

                for (int i = 0; i < size.Count; i++)
                {
                    sumOfShells += size[i];
                    countOfShells++;
                }
                int giantShell = sumOfShells - (sumOfShells / countOfShells);

                //int gianShellSize = shell.Value.Sum() - (int)shell.Value.Average(); vmesto gorniq kod

                Console.WriteLine("{0} -> {1} ({2})", regionsName, string.Join(", ", size), giantShell);
            }

        }
    }
}