"A lot of these questions are made intentially vague or weirdly worded to increase difficulty and to make you think a little more". No, it's called bad English. We come here to test our ability to think programmatically, not to try and improve our ability to interpret poorly written text.

study on what self does, and how instances of classes work

class RandomClass():
  def __init__(self, INPUT1, INPUT2, etc..):
    self.INPUT1 = INPUT1   # this takes the inputs and makes them part of the class..
    self.INPUT2 = INPUT2
    self.hiddendata = ["data", "accessed", "by", "entire", "class"] # data that is inate to the class
    
  def add(self, input1, input2):     #self here as well. so you can access self.hiddendata for example
    return self.hiddendata, input1 + input2

there is only 1 object tested. example:

x = Arith("five")
print(x.add("seven"))
this should return "twelve"

Yo PLEASE unlock that for Python 3. Took me long enough to find out why all my answers are changed to 0 out of nowhere when it worked fine on my PC.

Reason is that Python 2 handles the '/' operator different than Python 3

Hey could I get the number n at which the error occurs? Currentely I cannot recreate the error on my machine. At some random numbers I get an error, example:

Hihger Values of n (From 1000000 up to 5000000)
1048447 should equal 1288849

Unfortunately it does not tell me what n was.

Running numbers through my code bigger than the ones given always gives me the right answer. I'm kinda hung up here. I'll leave my code in a reply to this comment.

I need a bit of a headstart here? I can't just use itertools.permutations, but neither can I write a self prolonging nested for loop.

Does anyone have a bit of advice for me?

You're right, sorry. I am using Python.

Please specify the language you are using?

Hi iphark. For this particular kata, research "lookahead assertion", "character set", and how the ^ (carat) and $ (dollar sign) work in regex. Hopefully this helped!