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: Who did he believe the claim that he had never met?

Output: 0


Input: Consider Input: That the march should go ahead and that it should be cancelled has been argued by different people at different times.

Output: 0


Input: Consider Input: In the hallway there ticked a grandfather clock.


Output: 1