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 witch went into the forest and thereby vanished.

Ex Output:
1


Ex Input:
Seems John to fix the computer.

Ex Output:
0


Ex Input:
Maxwell isn't half the doctor that was here.

Ex Output:

0