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.

Input: Consider Input: There are 5 scissors and 3 pencils in the drawer . Jason placed 4 scissors in the drawer . How many scissors are now there in total ?

Output: 9


Input: Consider Input: Gwen and her friends were recycling paper for their class . For every 3 pounds they recycled they earned one point . If Gwen recycled 5 pounds and her friends recycled 13 pounds , how many points did they earn ?

Output: 6


Input: Consider Input: John weighs 81 pounds . Roy weighs 4 pounds . How much heavier is John than Roy ?


Output: 77