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:
She has problem enough as it is.

Ex Output:
0


Ex Input:
Oliver ascribed his longevity there.

Ex Output:
0


Ex Input:
Who did he believe the claim that he had never met?

Ex Output:

0