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: Dan has $ 5. He bought a chocolate for $ 3 and a candy bar for $ 7. 

 Question: How much money did he spend to buy candy bar than he did to buy chocolate?

Ex Output:
4


Ex Input:
Context: Julia played tag with 11 kids on monday. She played tag with 12 kids on tuesday. 

 Question: How many more kids did she play with on tuesday than on monday?

Ex Output:
1


Ex Input:
Context: Paco had 41 cookies. He gave 9 cookies to his friend and ate 18 cookies. 

 Question: How many more cookies did he eat than those he gave to his friend?

Ex Output:

9