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:
A new building needed 9 windows . The builder had already installed 6 of them . If it takes 6 hours to install each window , how long will it take him to install the rest ?

Ex Output:
18


Ex Input:
A pet store had 88 puppies . In one day they sold 34 of them and put the rest into cages with 6 in each cage . How many cages did they use ?

Ex Output:
9


Ex Input:
Each chocolate bar in a box cost $ 3 . If a box had 7 bars total and Olivia sold all but 4 bars , how much money would she have made ?

Ex Output:

9