eretailcontent image script

Progam.cs

static void Main(string[] args)
        {
            List<String> ids = new List<String>();
            List<String> imgs = new List<String>();

            Console.WriteLine("Dir -> ");
            var image_folder = Console.ReadLine();
            string[] files = Directory.GetFiles(image_folder,"*", SearchOption.AllDirectories);

            foreach(string s in files)
            {
                var id = s.Split('_')[0];
                var exists = false;

                var indx = 0;
                foreach(string s2 in ids)
                {

                    if(s2 == id) { exists = true; break; }
                    indx++;
                }

                if(exists)
                {
                    imgs[indx] = imgs[indx] + ";" + s;
                    continue;
                }
                else
                {
                    ids.Add(id);
                    imgs.Add(s);
                }
            }

            File.WriteAllLines(image_folder + "\\ids.txt", ids.ToArray());
            File.WriteAllLines(image_folder + "\\imgs.txt", imgs.ToArray());

        }