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 saw 144 bees in the hive . The next day she saw 3 times that many . How many bees did she see on the second day ?
Example Output: 432

Example Input: Mrs. Hilt had 15 cents . She bought a pencil for 11 cents . How much money did she have left ?
Example Output: 4

Example Input: There are 6 marbles in each box . How many marbles are in 3 boxes ?
Example Output:
18