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.

Example Input: Amy had 26 music files and 36 video files on her flash drive . If she deleted 48 of the files , how many files were still on her flash drive ?
Example Output: 14

Example Input: Christina just transferred $ 69 out of her bank account . As a result , the account now has $ 26935 in it . How much money was in the account before the transfer ?
Example Output: 27004

Example Input: Robin uploaded 31 pictures from her phone and 5 from her camera to facebook . If she sorted the pics into 9 different albums with the same amount of pics in each album , how many pictures were in each of the albums ?
Example Output:
4