using System;

using System.Text.RegularExpressions;   

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        string text = Console.ReadLine();

        //string partPattern = @"(\b[a-z]*)=(?:\s*|[\W]*)(\b([\w]*([:\/\w\. ])*)\b)";   

        string partPattern = @"([^&=?]*)=\s*([^&=]*)";

        //login=student&password=student

        //field=value1&field=value2&field=value3

        //http://example.com/over/there?name=ferret

        //foo= foo&value=val&foo=5 203

        //foo=poo &value=valley&dog=wow

        //url=https://softuni.bg/trainings/coursesinstances/details/1070

        //https://softuni.bg/trainings.asp?trainer=nakov&course=oop&course=php      

        while(!text.Equals("END"))

        {

            string replacement = @"(%20|\+)+";

            text = Regex.Replace(text, replacement, " ");

            //Console.WriteLine(text);

            Regex regex = new Regex(partPattern);

            MatchCollection matches = regex.Matches(text);

            Dictionary<string, List<string>> values = new Dictionary<string, List<string>>();

            foreach(Match match in matches)

            {

                string valuesKey = match.Groups[1].ToString().Trim(); 

                string valuesValue = match.Groups[2].ToString().Trim();

                if(!values.ContainsKey(valuesKey))

                {

                    values.Add(valuesKey, new List<string>());

                }

                values[valuesKey].Add(valuesValue); 

            }

            foreach(var val in values)

            {

                Console.Write("{0}=[{1}]",val.Key, string.Join(", ", val.Value));       

            }

            Console.WriteLine();

            text = Console.ReadLine();

        }

    }

}