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: Nell collects baseball cards . She had 304 cards . She gave some of her cards to Jeff and now has 276 cards left . How many cards did Nell give to Jeff ?
Example Output: 28

Example Input: A number is 14 less than the sum of 30 and 29 . What is the number ?
Example Output: 45

Example Input: The school cafeteria ordered 25 red apples and 17 green apples for students lunches . But , if only 10 students wanted fruit , how many extra did the cafeteria end up with ?
Example Output:
32