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: A pet supply store has 600 bags of dog food and 327 bags of cat food . How many more bags of dog food are there than cat food ?
Example Output: 273

Example 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 ?
Example Output: 28

Example Input: Melissa has 88 bananas . She shares 4 with Joshua . How many bananas will Melissa have ?
Example Output:
84