using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using System.Linq;

class QueryMes
{
    static void Main()
    {
        string input = Console.ReadLine();
        string pattern = @"(?<key>\w+)=(?<value>\w+)";
        Regex rgx = new Regex(pattern);

        while (input != "END")
        {

            MatchCollection matches = rgx.Matches(input);
            Dictionary<string, List<string>> results = new Dictionary<string, List<string>>();

            foreach (Match item in matches)
            {
                if (!results.ContainsKey(item.Groups["key"].Value))
                {
                    results.Add(item.Groups["key"].Value, new List<string>());
                }
                results[item.Groups["key"].Value].Add(item.Groups["value"].Value);
            }

            foreach (var r in results)
            {
                Console.Write("{0}=[{1}]", r.Key, string.Join(", ", r.Value));
            }
            Console.WriteLine();
            input = Console.ReadLine();
        }

    }
}