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: Here is the snowball which I chased the boy who threw at our teacher.

Output: 0


Input: Consider Input: The hardest that that it has snowed here is believed was last January 12th.

Output: 0


Input: Consider Input: Doug removed the scratches from the tabletop.


Output: 1