using System;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        Console.WriteLine(DeleteAccentAndSpecialsChar("João André Tânia"));

    }

    private static string DeleteAccentAndSpecialsChar(string OriginalText)

        {

            string strTemp = OriginalText;

            // Regex creation

            Regex regA = new Regex("[ã|à|â|ä|á|å]");

            Regex regAA = new Regex("[Ã|À|Â|Ä|Á|Å]");

            Regex regE = new Regex("[é|è|ê|ë]");

            Regex regEE = new Regex("[É|È|Ê|Ë]");

            Regex regI = new Regex("[í|ì|î|ï]");

            Regex regII = new Regex("[Í|Ì|Î|Ï]");

            Regex regO = new Regex("[õ|ò|ó|ô|ö]");

            Regex regOO = new Regex("[Õ|Ó|Ò|Ô|Ö]");

            Regex regU = new Regex("[ù|ú|û|ü|µ]");

            Regex regUU = new Regex("[Ü|Ú|Ù|Û]");

            Regex regY = new Regex("[ý|ÿ]");

            Regex regYY = new Regex("[Ý]");

            Regex regAE = new Regex("[æ]");

            Regex regAEAE = new Regex("[Æ]");

            Regex regOE = new Regex("[œ]");

            Regex regOEOE = new Regex("[Œ]");

            Regex regC = new Regex("[ç]");

            Regex regCC = new Regex("[Ç]");

            Regex regDD = new Regex("[Ð]");

            Regex regN = new Regex("[ñ]");

            Regex regNN = new Regex("[Ñ]");

            Regex regS = new Regex("[š]");

            Regex regSS = new Regex("[Š]");

            strTemp = regA.Replace(strTemp, "a");

            strTemp = regAA.Replace(strTemp, "A");

            strTemp = regE.Replace(strTemp, "e");

            strTemp = regEE.Replace(strTemp, "E");

            strTemp = regI.Replace(strTemp, "i");

            strTemp = regII.Replace(strTemp, "I");

            strTemp = regO.Replace(strTemp, "o");

            strTemp = regOO.Replace(strTemp, "O");

            strTemp = regU.Replace(strTemp, "u");

            strTemp = regUU.Replace(strTemp, "U");

            strTemp = regY.Replace(strTemp, "y");

            strTemp = regYY.Replace(strTemp, "Y");

            strTemp = regAE.Replace(strTemp, "ae");

            strTemp = regAEAE.Replace(strTemp, "AE");

            strTemp = regOE.Replace(strTemp, "oe");

            strTemp = regOEOE.Replace(strTemp, "OE");

            strTemp = regC.Replace(strTemp, "c");

            strTemp = regCC.Replace(strTemp, "C");

            strTemp = regDD.Replace(strTemp, "D");

            strTemp = regN.Replace(strTemp, "n");

            strTemp = regNN.Replace(strTemp, "N");

            strTemp = regS.Replace(strTemp, "s");

            strTemp = regSS.Replace(strTemp, "S");

            return strTemp;

        }

}