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: Ernest starts with 17 crayons . Jennifer takes 6 away . How many crayons does Ernest end with ?
Example Output: 11

Example Input: Teresa starts with 52 bananas . She gets 2 more from Rachel . How many bananas does Teresa end with ?
Example Output: 54

Example Input: Cody is 14 years old . His grandmother is 6 times as old as he is . How old is Cody ’ s grandmother ?
Example Output:
84