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:
Patrick jogged to Aaron 's house . It is 14 miles from Patrick 's house to Aaron 's house . It took Patrick 2 hours to get there . How fast did Patrick go ?

Ex Output:
7


Ex Input:
Alyssa has 36 books . Nancy has 7 times more books than Alyssa . How many books does Nancy have ?

Ex Output:
252


Ex Input:
Mary ’ s car gets 20 miles per gallon of gas . How far can she drive on 14 gallons of gas ?

Ex Output:

280