Score : $100$ points

Problem Statement

You are given a string $S$ of length $2$ or $3$ consisting of lowercase English letters. If the length of the string is $2$, print it as is; if the length is $3$, print the string after reversing it.

Constraints

• The length of $S$ is $2$ or $3$.
• $S$ consists of lowercase English letters.

Input

Input is given from Standard Input in the following format:

$S$

Output

If the length of $S$ is $2$, print $S$ as is; if the length is $3$, print $S$ after reversing it.

abc

cba

As the length of $S$ is $3$, we print it after reversing it.

ac

ac

As the length of $S$ is $2$, we print it as is.