Palindrome Check

Given a non-negative integer represented as a string N, your task is to determine whether it is a palindrome. A number is said to be a palindrome if it reads the same backward as forward. In mathematical terms, a string N is a palindrome if

\( N = reverse(N) \)

where \( reverse(N) \) represents the string N with its characters in reverse order.

Constraints:

• The input is a single line containing the string representation of a non-negative integer.
• The number can be very large, so it is provided as a string.

Your solution should read input from standard input (stdin) and output the result to standard output (stdout).

inputFormat

The input consists of a single line containing the string N, which represents a non-negative integer.

Example:

12321

outputFormat

Output a single line: print Yes if the string N is a palindrome, otherwise output No.

Example:

Yes

## sample

12321

Yes