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: Sara picked 35 pears and 27 apples from the orchard . She gave 28 pears to Dan . How many pears does Sara have ?
Example Output: 7

Example Input: Megan had 217 markers . Robert gave her 109 more markers . How many markers does Megan have altogether ?
Example Output: 326

Example Input: Zoe and her friends were recycling paper for their class . For every 8 pounds they recycled they earned one point . If Zoe recycled 25 pounds and her friends recycled 23 pounds , how many points did they earn ?
Example Output:
6