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: Not many books survived the fire, did they?

Output: 1


Input: Consider Input: I lent the book most of the way to Tony.

Output: 0


Input: Consider Input: After ten had left, seven more soldiers came in.


Output: 1