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:
All Mr Collins has done is have praised Lady de Bourg.

Ex Output:
0


Ex Input:
Heather cabled for Sara to come.

Ex Output:
1


Ex Input:
In general that he understands what's going on is surprising.

Ex Output:

0