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: Baker made 133 cakes. If he sold 51 of them 

 Question: How many more cakes did baker make than those he sold?

Ex Output:
82


Ex Input:
Context: Matthew had 24 crackers. If Matthew gave equal numbers of crackers to his 3 friends and still had 17 crackers left 

 Question: How many crackers did Matthew give to his friends?

Ex Output:
7


Ex Input:
Context: Jerry had 5 action figures and 9 books on a shelf in his room. Later he added 7 more action figures to the shelf. 

 Question: How many more action figures than books were on his shelf?

Ex Output:

3