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: Brandon has 96 Skittles . Bonnie has 4 Skittles . He loses 9 . How many Skittles will Brandon have ?
Example Output: 87

Example Input: Joan picked 43 apples from the orchard , and gave 27 apples to Melanie . How many apples does Joan have now ?
Example Output: 16

Example Input: Mike had 33 quarters and 87 nickels in his bank . His dad borrowed 75 nickels from Mike . How many nickels does he have now ?
Example Output:
12