You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Ex Input:
amanda and her friends decided to go to an amusement park for the weekend . the nearest amusement park from their city is super fun-tastic land . if they cover a distance of 27 miles for every hour of travel and they travelled for 3 hours how far is sfl from the city ?

Ex Output:
81


Ex Input:
a company was offering a special on cell phones for $ 2 each . but only if you spent 7 dollars a month for 4 months . how much would it end up costing you total if you bought 1 phone ?

Ex Output:
30


Ex Input:
a sandbox is 312 centimeters long and 146 centimeters wide . how many square centimeters of ground does the sandbox cover ?

Ex Output:

45552