06.Query Mess*

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

namespace QueryMess
{
    class Program
    {
        static void Main()
        {
            var stringList = new List<string>();
            Regex pattern = new Regex(@"(\w+\+?%?)=([^&]+)");
            string input = Console.ReadLine();
            Dictionary<string, List<string>> result = new Dictionary<string, List<string>>();
            while(input != "END")
            {
                input = input.Replace("?", "&");
                stringList.Add(input);
                input = Console.ReadLine();
            }
            for (int i = 0; i < stringList.Count; i++)
            {
                MatchCollection matches = pattern.Matches(stringList[i]);
                foreach(Match match in matches)
                {
                    string name = Regex.Replace(match.Groups[1].ToString(), @"\+?%20\+?|\+", " ").Trim();
                    string value = Regex.Replace(match.Groups[2].ToString(), @"\+?%20\+?|\+", " ").Trim();
                    if(!result.ContainsKey(name))
                    {
                        result[name] = new List<string>();

                    }
                    result[name].Add(value);
                    //Console.WriteLine(name);
                    //Console.WriteLine(value);
                }
              foreach(var pair in result)
              {
                  Console.Write("{0}=[{1}]", pair.Key, string.Join(", ", pair.Value));
              }
              Console.WriteLine();
              result.Clear();
            }

        }
    }
}