using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Въведете символен низ:");

        string s= Console.ReadLine();

        bool isPalindrome=true;

        for (int i=0; i<s.Length/2;i++)

        { if(s[i]!=s[s.Length-1-i])

        {isPalindrome=false;

         break;}

        }

        if (isPalinrome)

        {Console.WriteLine();}

    }

}