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 are 2 bananas in a pile on the desk . Each banana comes in a package of 13 . 7 bananas are added to the pile . How many bananas are there in the pile ?
Example Output: 9

Example Input: Scott has 4 tickets . Ernest has with 9 tickets . Ernest finds another 72 . How many tickets does Ernest end with ?
Example Output: 81

Example Input: Fred has 10 red balloons , Sam has 46 red balloons , and Dan has 16 red balloons . The balloons cost 10 dollars . How many red balloons do they have in all ?
Example Output:
72