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:
The sign warned against skating on the pond.

Ex Output:
1


Ex Input:
We ate enough a pudding to satisfy us.

Ex Output:
0


Ex Input:
Fluffy is sick, which that no one here realizes is certain.

Ex Output:

0