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:
Which packages didn't Sam pick up which are to be mailed tomorrow until it had stopped raining?

Ex Output:
0


Ex Input:
Steve pelted at Anna.

Ex Output:
0


Ex Input:
Him, they let him go yesterday.

Ex Output:

1