You will be given a sentence. Check whether the sentence is grammatically correct and is meaningful. If the sentence is grammatically correct, then answer with '1', otherwise answer with '0'.

Ex Input:
The person with who we were talking left.

Ex Output:
0


Ex Input:
What are you eating or did you play chess?

Ex Output:
0


Ex Input:
I was not reading a book when you came in.

Ex Output:

1