using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Text.RegularExpressions;

namespace Polindromes
{
    class Polindromes
    {
        static void Main(string[] args)
        {

            string textStr = @"Nice blue sky. No exe flying in the sky. ABBA will not come in Bulgaria.
I don`t know what is lamal, maybe I will find some day. mouseesuom";

            foreach (var word in Regex.Matches(textStr, @"\w*"))
            {
                string wordStr = Convert.ToString(word);

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

                    if (wordStr[i] != wordStr[wordStr.Length-i-1])
                    {
                        break;
                    }
                    else
                    {
                        if (i == (wordStr.Length/2)-1)
                        {
                            Console.WriteLine(wordStr);
                        }
                    }
                }


            }




        }
    }
}