Kata

During this kata, you will take on the role of a spy-decryptor.

Your commander has sent you on a dangerous mission to locate an envelope containing crucial information about your commander. Fortunately, an anonymous assistant from your enemy’s side has decided to help you and has sent you the envelope. However, the information inside is encrypted as an expression.

Your task is to decrypt the information inside.

Your are given a function as a string, for example:

'() => 1+2+3*4'

and your task is to provide the function with the same content

As you need to decrypt it as soon as possible, you can not recall how to use the follwoing methods (oh, what a poor memory):

1. require
2. eval
3. Function
4. and some regexp methods

Input

string as a function

Output

function itself (do not call it)