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.

Input: Consider Input: Vanessa had 16 music files and 48 video files on her flash drive . If she deleted 30 of the files , how many files were still on her flash drive ?

Output: 34


Input: Consider Input: Marcus has 210 baseball cards . He has 58 more than Carter . How many baseball cards does Carter have ?

Output: 152


Input: Consider Input: Tom had 5 books . If he sold 4 of them and used the money he earned to buy 38 new books , how many books would Tom have ?


Output: 39