Palindrome Number

Description

Given an integer N, determine whether it is a palindrome (reads the same forwards and backwards).

Input Format

One integer N.

Output Format

Print YES if N is a palindrome, NO otherwise.

Constraints

1 <= N <= 10^9

Example

Input: 12321

Output: YES

*(because 12321 reversed is still 12321)*

Input: 12345

Output: NO

*(because 12345 reversed is 54321 ≠ 12345)*

Input: 121

Output: YES

Explanation

Reverse the number and check if it equals the original.