In this task, you are given a tweet in English. You are expected to classify the post into two classes: sarcastic or non-sarcastic. A sarcastic sentence is one that refers to the use of words that mean the opposite of what you really want to say, especially in order to insult someone, or to show irritation, or just to be funny.

Let me give you an example: I work 40 hours a week for me to be this poor.
The answer to this example can be: sarcastic
Here is why: Here, the person means to say that even after working 40 hours a week, he is still poor. Thus it actually contradicts to what he says.

OK. solve this:
So and justin biebers new song is called flyin ' . kay
Answer:
non-sarcastic