You are given a math word problem and you are supposed to apply a single mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report final the numerical answer.

Ex Input:
There are 96 oranges in a box . Jonathan takes 45 oranges . How many are left ?

Ex Output:
51


Ex Input:
Lizette has 813 stamps . Lizette has 125 more stamps than Minerva . How many stamps does Minerva have ?

Ex Output:
688


Ex Input:
Arthur has 6 cards . Aaron has with 5 cards . Aaron finds another 62 . How many cards does Aaron end with ?

Ex Output:

67