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:
A restaurant served 9 pizzas during lunch and 6 during dinner today . How many pizzas were served today ?

Ex Output:
15


Ex Input:
Jeremy strolled 20 kilometers at 2 kilometers per hour . How long did Jeremy stroll ?

Ex Output:
10


Ex Input:
Jesse has 21 bananas . If he shares them among 3 friends , how many bananas does each friend get ?

Ex Output:

7