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 Q]: Context: David did 36 more push-ups but 33 less crunches than Zachary in gym class today. If Zachary did 58 push-ups and 33 crunches 

 Question: How many more push-ups than crunches did Zachary do?
[EX A]: 25

[EX Q]: Context: There were 78 dollars in Olivia's wallet. She spent 15 dollars at a supermarket. 

 Question: How much money does she have left?
[EX A]: 63

[EX Q]: Context: Danny collects bottle caps and wrappers. He found 30 bottle caps and 14 wrappers at the park. Now he has 7 bottle caps and 86 wrappers in his collection. 

 Question: How many more bottle caps than wrappers did danny find at the park?
[EX A]:
16