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: He then went to see the oranges being harvested. He found out that they harvest 41 sacks of unripe oranges and 86 sacks of ripe oranges per day. 

 Question: How many more sacks of ripe oranges than unripe oranges are harvested per day?
Example Output: 45

Example Input: Context: A grocery store had 72 bottles of regular soda, 32 bottles of diet soda and 78 apples. 

 Question: How many more bottles than apple did they have?
Example Output: 26

Example Input: Context: Paco had 22 sweet cookies and 75 salty cookies. He ate 15 sweet cookies and 54 salty cookies. 

 Question: How many sweet cookies did Paco have left?
Example Output:
7