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: After eating a hearty meal they went to see the Buckingham palace. There, Rachel learned that 45 visitors came to the Buckingham palace on the previous day. If 829 people visited the Buckingham palace within the past 85 days 

 Question: How many visitors visited the Buckingham palace on that day?
Example Output: 784

Example Input: Context: Paco had 97 salty cookies and 34 sweet cookies. He ate 15 sweet cookies and 56 salty cookies. 

 Question: How many sweet cookies did Paco have left?
Example Output: 19

Example Input: Context: The grasshopper, the frog and the mouse had a jumping contest. The grasshopper jumped 25 inches. The frog jumped 32 inches farther than the grasshopper and the mouse jumped 26 inches lesser than the frog. 

 Question: How far did the mouse jump?
Example Output:
31