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'.

Input: Consider Input: This building is than that one.

Output: 0


Input: Consider Input: Do you know the boy who Mary saw?

Output: 1


Input: Consider Input: Bill is drying the line with a lot of clothes.


Output: 0


