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: Shirley starts with 98 eggs . She buys 8 more . How many eggs does Shirley end with ?
Example Output: 106

Example Input: Joan had 695 Pokemon cards , and 6 were torn . Sara bought 133 of Joan 's Pokemon cards . How many Pokemon cards does Joan have now ?
Example Output: 562

Example Input: Megan was organizing her book case making sure each of the shelves had exactly 7 books on it . If she had 8 shelves of mystery books and 2 shelves of picture books , how many books did she have total ?
Example Output:
70