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: The sign warned against skating on the pond.

Output: 1


Input: Consider Input: Pictures of whom appeared in the newspaper?

Output: 0


Input: Consider Input: Keep your mouth shut tighter, the more John eats, OK?


Output: 1