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:
Students went to a concert in 8 buses . Each bus took 45 students . How many students went to the concert ?

Ex Output:
360


Ex Input:
Mrs. Hilt bought 3 pizzas for $ 8 each . What was the total amount she paid for the three pizzas ?

Ex Output:
24


Ex Input:
Each CD rack holds 8 CDs . A shelf can hold 4 racks . How many total CDs can fit on the shelf ?

Ex Output:

32