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:
There are 88 candies in a box . Lisa has 18 candies in a bag . Diana takes 6 candies out of the box . How many candies are left in the box ?

Ex Output:
82


Ex Input:
Marie can bike at a speed of 12 miles an hour . How far can she bike in 31 hours ?

Ex Output:
372


Ex Input:
A ship is filled with 5973 tons of cargo . It stops in the Bahamas , where sailors load 8723 more tons of cargo onboard . How many tons of cargo does the ship hold now ?

Ex Output:

14696