Given a math word problem, answer the following question. You might need to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the question and then only report the final numerical answer.

Example Input: she then went to 3 orphanages and donated a total of $ 650 . if she gave $ 175 to the first orphanage and $ 250 to the third how much did she donate to the second orphanage ?
Example Output: 225

Example Input: jake has 34 fewer balls than audrey . audrey has 41 balls . how many balls does jake have ?
Example Output: 7

Example Input: there were 47 bales of hay in the barn and 40 bales in the shed . benny stacked more bales in the barn today . there are now 82 bales of hay in the barn . how many bales did he store in the barn ?
Example Output:
35