using System;

​

public class Program

{

    public static void Main()

    {

        //Cadenas

        string lsCadena01, lsCadena02, lsCadenaAux;

        //leer

          Console.WriteLine("Dame una cadena de Texto");

             lsCadena01 = Console.ReadLine();

        Console.WriteLine("Dame una cadena de Texto");

         lsCadena02 = Console.ReadLine();

           if (lsCadena01.Length > lsCadena02.Length)

        {

            Console.WriteLine(lsCadena01.Length);

        }

        else

        {

            Console.WriteLine(lsCadena02.Length);

        }

​

        Console.WriteLine(lsCadena01.Contains(lsCadena02));

        //

        Console.WriteLine(lsCadena02.Substring(lsCadena02.Length - 3, 3));

        Console.WriteLine(lsCadena01.Substring(0, 5));

        Console.WriteLine(lsCadena01.Replace("a", "x").Replace("b", "y").Replace("c", "x"));

        lsCadenaAux = lsCadena01.Replace("a", "x");

           lsCadenaAux = lsCadena01.Replace("b", "y");

        lsCadenaAux = lsCadena01.Replace("c", "x");

        Console.WriteLine(lsCadenaAux);

           Console.WriteLine(lsCadena01 + " " + lsCadena02);

    }

}