Given a math word problem, answer the following question. You might need to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the question and then only report the final numerical answer.

Example Input: diane wants to buy a package of cookies . the cookies cost 65 cents . diane has 27 cents . what 's the difference between the cost of the cookies and the money of diane ?
Example Output: 38

Example Input: while heating the wings charlie decided to make metal supports for the wings . if he needs 635 lbs of metal and he has 276 lbs in storage how much additional metal does he need to buy ?
Example Output: 359

Example Input: while playing a game kaleb had 98 lives . after losing some lives he had 73 left . how many lives did kaleb lose ?
Example Output:
25