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:
Himself laughs.

Ex Output:
0


Ex Input:
What sofa will he put the chair between some table and?

Ex Output:
0


Ex Input:
John knows whose book Mary bought and Tom talked.

Ex Output:

0