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

Example Input: 3 raccoons are playing in the woods . 2 go home to eat dinner . how many raccoons are left in the woods ?
Example Output: 1

Example Input: their last stop before leaving the zoo is the bird museum . there they went through 7 bird exhibits spending 9 minutes going around each exhibit . how much time did they spend going through the museum ?
Example Output: 63

Example Input: a chef had 14 apples . if he used 8 of them to make a pie how many apples would he still have ?
Example Output:
6