using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        var title = "New kotukelime Mont";

        var variants = new List<string>()

        {"kotukelime", "Siyah"};

        var restrictedwords = new List<string>()

        {"kotukelime"};

        foreach (var variantProperty in variants)

        {

            var searchWord = " " + variantProperty + " ";

            var searchIn = " " + title + " ";

            if (!String.IsNullOrEmpty(variantProperty) && title.Length + variantProperty.Length + 3 <= 30 && (searchIn.Length - searchIn.ToLowerInvariant().Replace(searchWord.ToLowerInvariant(), String.Empty).Length) / searchWord.Length == 0)

            {

                var restrictedWordFlag = false;

                foreach (var restrictedWord in restrictedwords)

                {

                    searchWord = " " + restrictedWord + " ";

                    searchIn = " " + variantProperty + " ";

                    if ((searchIn.Length - searchIn.ToLowerInvariant().Replace(searchWord.ToLowerInvariant(), String.Empty).Length) / searchWord.Length >= 1)

                    {

                        restrictedWordFlag = true;

                        break;

                    }

                }

​

                if (!restrictedWordFlag)

                    title = String.Format("{0} - {1}", title, variantProperty);

            }

​

            Console.WriteLine(title);

        }

    }

}