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 hiker will reach the top of the mountain for an hour.

Ex Output:
0


Ex Input:
The perception of the problem is quite thorough.

Ex Output:
1


Ex Input:
I don't know if to agree with him.

Ex Output:

0


