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:
It took Amanda 2 hours to stroll to Kimberly 's house at 4 miles per hour . How far is it between Amanda 's house and Kimberly 's house ?

Ex Output:
8


Ex Input:
A chocolate chip cookie recipe calls for 2 cups of chocolate chips . You want to make 23 recipes for a bake sale . How many cups of chocolate chips will be needed to make all the cookie recipes ?

Ex Output:
46


Ex Input:
A garden has 52 rows and 15 columns of bean plans . How many plants are there in all ?

Ex Output:

780