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:
Keep your mouth shut tighter, the more John eats, OK?

Ex Output:
1


Ex Input:
The book to whom did you give.

Ex Output:
0


Ex Input:
The teacher meant.

Ex Output:

0