using System;

using System.Collections.Generic;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        var line = "กฎหมายอาญา 2,กฎหมายอาญา 1,กฎหมายเพ่ง 1" ;

        List<string> show = line.Split(',').ToList();

        List<string> sortedCityNames = show.OrderBy(city => city).ToList();

        string temp = "";

        string bftemp = "";

        foreach (string cityName in sortedCityNames)

        {

            if(bftemp == "")

            {

                temp = cityName;

            }

            else{

                if(bftemp != cityName.Split(' ')[0]){

                    temp += ','+cityName;

                }

                else{

                    temp += ','+cityName.Split(' ')[1];

                }

            }

            bftemp = cityName.Split(' ')[0];

        }

        Console.WriteLine(temp);

    }

}