You are given a math word problem and you are supposed to only use subtraction on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Example Input: Context: Debby bought 264 water bottles when they were on sale. If she drank 15 bottles a day for 11 days. 

 Question: How many bottles does she have left?
Example Output: 99

Example Input: Context: Nell collects baseball cards. She had 566 cards while Jeff had 234 cards. She gave some of her cards to Jeff and now has 535 cards left. 

 Question: How many cards does Jeff have now?
Example Output: 265

Example Input: Context: Every day Ryan spends 6 hours on learning english 3 hours on learning chinese and 58 hours on learning spanish. 

 Question: How many more hours does he spend on learning english than he does on learning chinese?
Example Output:
3