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:
John received a book.

Ex Output:
1


Ex Input:
I'll work on it if no one else had.

Ex Output:
1


Ex Input:
The more he reads, the more people I wonder what he will give to.

Ex Output:

0