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: Joan found 70 seashells on the beach . she gave Sam some of her seashells . She has 27 seashell . How many seashells did she give to Sam ?
Example Output: 43

Example Input: Jason picked 46 pears , Keith picked 47 pears , and Mike picked 12 pears from the pear tree . How many pears were picked in total ?
Example Output: 105

Example Input: Haley and her friends were recycling paper for their class . For every 3 pounds they recycled they earned one point . If Haley recycled 11 pounds and her friends recycled 16 pounds , how many points did they earn ?
Example Output:
9