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: Paul had saved up 4 dollars . If he received another 11 dollars for his allowance , how many 5 dollar toys could he buy ?
Example Output: 3

Example Input: While playing a trivia game , Frank answered 3 questions correct in the first half and 2 questions correct in the second half . If each question was worth 3 points , what was his final score ?
Example Output: 15

Example Input: Mary ’ s mom is getting ready for Mary ’ s birthday party . She blew up 6 balloons this morning and 5 balloons this afternoon . How many balloons did she blow up in all ?
Example Output:
11

