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: Julia played tag with some kids on monday. She played tag with 14 kids on tuesday. If she played with a total of 16 kids 

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

Ex Output:
2


Ex Input:
Context: Mary is baking a cake. The recipe calls for 12 cups of sugar and 14 cups of flour. She already put in 10 cups of sugar. 

 Question: How many more cups of flour than cups of sugar does she need to add now?

Ex Output:
12


Ex Input:
Context: Dave had 16 apps and 77 files on his phone. After deleting some apps and files he had 5 apps and 23 files left. 

 Question: How many apps did he delete?

Ex Output:

11