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:
The sky cleared.

Ex Output:
1


Ex Input:
The more articles he reads, the fewer people he thinks under the current circumstances will go into linguistics.

Ex Output:
1


Ex Input:
If Jim feels good, he will go.

Ex Output:

1