Problem Statement

You are given a three-digit positive integer ~N~ .
Determine whether ~N~ is a palindromic number .
Here, a palindromic number is an integer that reads the same backward as forward in decimal notation.

Constraints

• ~100≤N≤999~
• ~N~ is an integer.

Input

Input is given from Standard Input in the following format:

~N~

Output

If ~N~ is a palindromic number, print Yes ; otherwise, print No .

Sample Input 1

575

Sample Output 1

Yes

~N=575~ is also ~575~ when read backward, so it is a palindromic number. You should print Yes .

Sample Input 2

123

Sample Output 2

No

~N=123~ becomes ~321~ when read backward, so it is not a palindromic number. You should print No .

Sample Input 3

812

Sample Output 3

No