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:
Who had Poseidon run away, because the executioner murdered?

Ex Output:
0


Ex Input:
They pushed through the crowd.

Ex Output:
1


Ex Input:
John scratched his arm and the boy who Mary knew did so too.

Ex Output:

1