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# Introduction

What is ROT13? It's basically a cipher sequence that changes a letter's value from the number chosen. If we use ROT1 on "games", we get "hbnft". The basic interpretation of ROT13 is iterating the value of a letter by 1 $n$ times. If you still don't understand, try using the ROT13 website

# Challenge

Make a program that takes input of a number from 1 to 25, call it $n$, and takes input of a string. It could be any. Then, use $n$ to convert the string into ROT$n$ and output the result.

### Examples of inputs and outputs:

If $n = 4$ and string is "Hello, world.", we get Lipps, asvph.
If $n = 15$ and string is "trololol", we get igdadada.
If $n = 7$ and string is "gxoxk zhggt zbox rhn ni", we get never gonna give you up.
If $n = 24$ and string is "I want breakfast!", we get G uylr zpcyidyqr!.
If $n = 13$ and string is "guvf grkg vf fhf", we get this text is sus.

Shortest program wins.

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