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: Dave had 15 apps on his phone. He added 71 new apps. After deleting some he had 14 left. 

 Question: How many more apps did he delete than he added?

Ex Output:
1


Ex Input:
Context: Julia played tag with 15 kids on monday, 18 kids on tuesday and 7 kids on wednesday. 

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

Ex Output:
26


Ex Input:
Context: After a typhoon, 2 trees in Haley's backyard died. If she had grown 11 trees initially 

 Question: How many more trees survived the typhoon than those that died?

Ex Output:

7