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 Plato listen to DP Demosthenes' oration about?

Output: 0


Input: Consider Input: The situation became terrible.

Output: 1


Input: Consider Input: They can't stand each other, him and her.


Output: 1