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: Baker made 170 cakes. He sold 78 of them and bought 31 new cakes. 

 Question: How many more cakes did baker sell than those he bought?
[EX A]: 47

[EX Q]: Context: There were 100 dollars in Olivia's wallet. She collected 148 more dollars from an atm. After she visited a supermarket there were 159 dollars left. 

 Question: How much did she spend?
[EX A]: 89

[EX Q]: Context: Last week Fred had 60 dollars and Jason had 19 dollars. Jason washed cars over the weekend and now has 33 dollars. 

 Question: How much money did Jason make washing cars?
[EX A]:
14