ArraySymmetry

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

namespace ArraySymmetry
{
    class Program
    {
        static void Main(string[] args)
        {
            string N = Console.ReadLine();
            string[] MyArray = N.Split(' ').ToArray();

            bool symmetric = true;
            int index = MyArray.Length - 1;
            for (int i = 0; i < MyArray.Length / 2; i++)
            {
                if (MyArray[i] != MyArray[index])
                {
                    symmetric = false;
                    break;
                }
                index--;
            }
            if (symmetric == true)
            {
                Console.WriteLine("Yes");
            }
            else
            {
                Console.WriteLine("No");
            }


        }
    }
}