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:
Mike will sing if you will sing.

Ex Output:
1


Ex Input:
No student, who wears socks, is a swinger.

Ex Output:
0


Ex Input:
They said that Tom would pay up, and pay up he did.

Ex Output:

1