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. */
    int strLength = A.length();
    String reverseStr="";

for (int i = (strLength - 1); i >=0; --i) {
    reverseStr = reverseStr + A.charAt(i);
}

if (A.toLowerCase().equals(reverseStr.toLowerCase())) {
  System.out.println( "Yes");
}
else {
  System.out.println( "No");
}     
}

}