ROT13

Time limit1sMemory limit256 MB

Summary

Encrypt the given string with ROT13, shifting each English letter by 13 places and leaving other characters unchanged.

Level: Easy1 of 10
Topics: String, Implementation
Solved: No attempts yet

Problem

ROT13 is a Caesar cipher that shifts every English letter forward by 13 places.

For example, encrypting "Programming Online Judge" with ROT13 gives "Cebtenzzvat Bayvar Whqtr". Applying ROT13 once more to an encrypted string restores the original text, so "Cebtenzzvat Bayvar Whqtr" turns back into "Programming Online Judge".

ROT13 applies only to uppercase and lowercase English letters. Any character that is not a letter stays exactly as it is. For example, encrypting "One is 1" with ROT13 gives "Bar vf 1".

Given a string, write a program that encrypts it with ROT13 and prints the result.

Input

The first line contains a string $S$ made up of uppercase letters, lowercase letters, spaces, and digits. The length of $S$ is at most 100.

Output

Print the result of encrypting $S$ with ROT13 on the first line.

Examples2

Example 1

Input

Programming Online Judge

Expected output

Cebtenzzvat Bayvar Whqtr

Example 2
Input
```
One is 1
```
Expected output
```
Bar vf 1
```