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Is Palindrome

Limits 1s, 512 MB

Given a word, print “Yes” if it is a palindrome, otherwise “No”.

A palindrome is a word which reads the same backward as forward, e.g. racecar.

Input

The input will contain a string S (Length of S < 100).

S will contain lowercase alphabets only.

Output

Print “Yes” or “No”.

Samples

InputOutput
racecar
Yes
InputOutput
carrot
No

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