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: There danced three men at the palace.

Output: 0


Input: Consider Input: John rolled the ball from the tree to the bush.

Output: 1


Input: Consider Input: John tries not to meet Mary.


Output: 1