using System;

public class Program

{

    public static void Main()

    {

        string s1 = "abcdefghijklmnopqrst";

            string s2 = "ABCD";

            string s3 = @"Libaerty park is located in chennai";

            //int result;

            //result = string.Compare(s1, s2);

            //Console.WriteLine("compare s1: {0},s2: {1},result: {2}\n",s1,s2,result);

            //Console.ReadLine();

            //string s6 = string.Concat(s1, s2);

            //Console.WriteLine("s6 concatenated:{0}", s6);

            //Console.ReadLine();

            //string s7 = s1 + s2;

            ///Console.WriteLine("s7 concatenated from s1+s2:{0}", s7);

            //Console.ReadLine();

            //string s8 = string.Copy(s7);

            //Console.WriteLine("s8 copied from s7:{0}", s8);

            //Console.ReadLine();

            //string s9 = s8;

            //Console.WriteLine("s9 = s8: {0}", s9);

            //Console.ReadLine();

           // Console.WriteLine("s3:{0}\n ends with chennai?:{1}\n", s3, s3.EndsWith("chennai"));

            //Console.ReadLine();

           // Console.WriteLine("s3:{0}\n ends with trancore?:{1}\n", s3, s3.EndsWith("trancore"));

            //Console.ReadLine();

        Console.WriteLine("\n String s9 is{0} characters long.",s3.Length);

    }

}