Assume the challenge:

> 
> Print any prime **n** whose **n-1** is also a prime.
> 
> 
> 

It's obvious that `3` is the only output. However, specified in the rules:

> 
> Hardcoding `3` as output is forbidden.
> 
> 
> 

Does it make any sense to ask these kind of questions, that will make the code calculate something, but for no reason?