You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Ex Input:
Luke had 48 dollars in January . By March he had spent 11 dollars . If he got another 21 dollars from his mom , how much money would he have ?

Ex Output:
58


Ex Input:
A tennis racket that regularly sells for 135 dollars is on sale for 25 % off the regular price . What is the sale price , in dollars ?

Ex Output:
101.25


Ex Input:
A pet store had 56 puppies . In one day they sold 24 of them and put the rest into cages with 4 in each cage . How many cages did they use ?

Ex Output:

8