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: Linda has 34 candies . Chloe has 28 . How many candies do they have in all ?
Example Output: 62

Example Input: Wendy was playing a video game and had 10 lives . In a hard part of the game she lost 6 lives . If she got 37 more lives in the next level , how many lives would she have ?
Example Output: 41

Example Input: A restaurant made 9 hamburgers and 4 hot dogs to serve during lunch . Only 3 hamburgers were actually served . How many hamburgers were over ?
Example Output:
6