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:
Stephanie went to the store 8 times last month . She buys 2 oranges each time she goes to the store . How many oranges did Stephanie buy last month ?

Ex Output:
16

Ex Input:
Mike has 87 baseball cards . Sam bought 13 of Mike 's baseball cards . How many baseball cards does Mike have now ?

Ex Output:
74

Ex Input:
If Stephanie ran for 3 hours at 5 miles per hour . How far did Stephanie go ?

Ex Output:
15