using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

​

namespace raides

{

    public class Program

    {

        public static void Main(string[] args)

        {

            string filepath = @"C:\Users\grauk\Desktop\Raidės\raides.txt";

            List<string> Lines = File.ReadAllLines(filepath).ToList();

            StringBuilder linija = new StringBuilder { };

            List<string> Nlines = new List<string>{};

​

            foreach (string Line in Lines)

            {

                int i = 0;

                foreach (char Symbol in Line)

                {

                    if ((Symbol >= 'A' && Symbol <= 'Z') || (Symbol == 'Ą') || (Symbol == 'Č') || (Symbol == 'Ę') || (Symbol == 'Ė') || (Symbol == 'Į') || (Symbol == 'Š') || (Symbol == 'Ų') || (Symbol == 'Ū') || (Symbol == 'Ž'))

                    {

                        linija.Insert(i, char.ToLower(Symbol));

                    }

​

                    else if ((Symbol >= 'a' && Symbol <= 'z') || (Symbol == 'ą') || (Symbol == 'č') || (Symbol == 'ę') || (Symbol == 'ė') || (Symbol == 'į') || (Symbol == 'š') || (Symbol == 'ų') || (Symbol == 'ū') || (Symbol == 'ž'))

                    {

                        linija.Insert(i, char.ToUpper(Symbol));

                    }

                    else

                    {

                        linija.Insert(i, Symbol);

                    }

                    i++;

                }

                Nlines.Add(linija.ToString());

                linija.Clear();

            }

            String filepath2 = @"C:\Users\grauk\Desktop\Raidės\RaidėsFormated.txt";

            File.WriteAllLines(filepath2, Nlines);

​

        }

    }

}

​