import java.util.Scanner;

/**
   Reads a string, checks to see if it is a palindrome, and prints
      "Yes" or "No", accordingly.
   Input: the value of s, a string
   Output: "Yes" or "No"
*/
public class PalFind
{
   public static void main(String[] args)
   {
      // Read string and convert to lowercase
      Scanner in = new Scanner(System.in);
      String ins = in.nextLine();
      ins = ins.toLowerCase();
      for(int i = 0; i < ins.length()/2; i++)
      {
         if(ins.charAt(i) != ins.charAt(ins.length() - 1 - i))
         {
            System.out.println("No");
            return;
         }
      }
      System.out.println("Yes");
   }
}