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 tries to meet often Mary.

Ex Output:
0


Ex Input:
The ship's sinking to collect the insurance was very devious.

Ex Output:
0


Ex Input:
What did he look up?

Ex Output:

1