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:
Seven more ones came in after ten soldiers had left.

Ex Output:
0


Ex Input:
Was been hit by Bill by the baseball.

Ex Output:
0


Ex Input:
After ten ones had left, seven more soldiers came in.

Ex Output:

0