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'.

Input: Consider Input: If my father, he comes home late, my mother always grills him.

Output: 0


Input: Consider Input: Paula spanked the naughty child.

Output: 1


Input: Consider Input: We think for Bill left.


Output: 0