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:
Lucy went to the grocery store . She bought 12 packs of cookies and 16 packs of noodles . How many packs of groceries did she buy in all ?

Ex Output:
28


Ex Input:
Marlee has 12 guests coming to her Halloween party . Each table will hold 3 guests . How many tables will she need ?

Ex Output:
4


Ex Input:
Albert has two snakes . The garden snake is 10 inches long . The boa constrictor is 7 times longer than the garden snake . How long is the boa constrictor ?

Ex Output:

70