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.

Ex Input:
If Rose strolled for 4 hours at 2 miles per hour . How far did Rose go ?

Ex Output:
8


Ex Input:
There are 41 short trees and 44 tall trees currently in the park . Park workers will plant 57 short trees today . How many short trees will the park have when the workers are finished ?

Ex Output:
98


Ex Input:
The school is planning a field trip . There are 14 students and 2 seats on each school bus . How many buses are needed to take the trip ?

Ex Output:

7