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 child is impossible to teach him.

Output: 0


Input: Consider Input: Why can't the man who usually cuts the grass do so today?

Output: 1


Input: Consider Input: Beans I don't think you'll be able to convince me Harry has ever tasted in his life.


Output: 1