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:
wendy earned 5 points for each bag of cans she recycled . if she had 11 bags but did n't recycle 2 of them how many points would she have earned ?

Ex Output:
45


Ex Input:
roger was reading through his favorite book series . he had 30 books to read total . if he read 6 books each week how many weeks would it take him to finish the series ?

Ex Output:
5


Ex Input:
ben on the other hand was asked to count the number of cows that they have . he saw that there are a total of 40 cows for every cow herd . how many cows do they have in total if there are 8 cow herds in the farm ?

Ex Output:

320