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: The school is planning a field trip . There are 45 students and 9 seats on each school bus . How many buses are needed to take the trip ?
Example Output: 5

Example Input: Mrs. Hilt read 4 books . Each book had 17 chapters in it . How many chapters did Mrs. Hilt read ?
Example Output:
68