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.

Ex Input:
Context: Paco ate 36 cookies. If he had 37 cookies initially 

 Question: How many cookies did Paco have left?

Ex Output:
1


Ex Input:
Context: Lawrence county has 898051 kids. During summer break 629424 kids go to camp and the rest stay home. 

 Question: How many kids stay home?

Ex Output:
268627


Ex Input:
Context: Baker made 7 cakes and 148 pastries. If he sold 15 cakes and 103 pastries 

 Question: How many pastries would baker still have?

Ex Output:

45