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'.

Ex Input:
Who did Plato listen to DP Demosthenes' oration about?

Ex Output:
0


Ex Input:
What do you remember where we bought?

Ex Output:
0


Ex Input:
Any pilot must be flying this plane.

Ex Output:

0