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:
All native speakers have a grammatical competence which can generate an infinite set of grammatical sentences from a finite set of resources.

Ex Output:
1


Ex Input:
The hardest that I believe that it ever snowed was last January 12th.

Ex Output:
1


Ex Input:
It is not true that it was obvious that it would confuse the guards for Herschel to throw a fit.

Ex Output:

1