import java.io.; import java.util.;

public class Solution {

public static void main(String[] args) {

    Scanner sc=new Scanner(System.in);
    String A=sc.next();
    /* Enter your code here. Print output to STDOUT. */
    A = A.toLowerCase();
    char[] initial;
    char[] finalstring = new char[A.length()];
    initial = A.toCharArray();

    for (int i = A.length()-1; i >= 0; i--) {
        finalstring[i] = initial[A.length()-1-i];
    }

    String one = String.valueOf(initial);
    String two = String.valueOf(finalstring);
    // System.out.println(one);
    if (one.equals(two))
    {
        System.out.println("Yes");
    }
    else
    {
        System.out.println("No");
    }


}

}