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: Sally grew 6 carrots . Fred grew 4 carrots . How many carrots did they grow in all ?
Example Output: 10

Example Input: There school 's baseball team had 2 new players and 6 returning players . If the coach put them into groups with 4 players in each group , how many groups would there be ?
Example Output: 2

Example Input: Kelly has 50 Nintendo games . How many does she need to give away so that she will have 35 games left ?
Example Output:
15