You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final 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:
Bobby collects 2 blocks . Bobby 's father gives Bobby 6 more . How many blocks does Bobby have ?

Ex Output:
8


Ex Input:
Brandon has 96 Skittles . Bonnie has 4 Skittles . He loses 9 . How many Skittles will Brandon have ?

Ex Output:

87


