You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Example Input: There were 39 girls and 4 boys trying out for the schools basketball team . If only 26 of them got called back , how many students did n't make the cut ?
Example Output: 17

Example Input: Frank and his friend were buying trick decks from the magic shop for 7 dollars each . How much did they spend if Frank bought 3 decks and his friend bought 2 decks ?
Example Output: 35

Example Input: A car company produced 3884 cars in North America and 2871 cars in Europe . How many cars is that in all ?
Example Output:
6755