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 policeman met several young students in the park last night.

Output: 1


Input: Consider Input: The ball rolled the hill.

Output: 0


Input: Consider Input: Among the guests were sitting my friend Louise.


Output: 0