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 happy, happy, happy, happy, happy, happy man sang a song.

Ex Output:
1


Ex Input:
Penny rowed across the lake.

Ex Output:
1


Ex Input:
The princess bowed to the queen.

Ex Output:

1