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: Mrs. Hilt ate 5 apples every hour . How many apples had she eaten at the end of 3 hours ?
Example Output: 15

Example Input: There are 16 bottle caps in a box . Marvin takes 6 bottle caps . How many are left ?
Example Output: 10

Example Input: Jason grew 23 watermelons and 18 turnips . Nancy grew 28 watermelons . How many watermelons did they grow in total ?
Example Output:
51