You are given a math word problem and you are supposed to apply a single mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report final the numerical answer.

Example Input: Marlee has 12 guests coming to her Halloween party . Each table will hold 3 guests . How many tables will she need ?
Example Output: 4

Example Input: The town of Milburg has 5256 grown - ups and 2987 children . How many people live in Milburg ?
Example Output: 8243

Example Input: Mike worked 3 hours , each day , for 5 days . How many hours did he work in total ?
Example Output:
15