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:
While on vacation , Debby took 24 pictures at the zoo and 12 at the museum . If she later deleted 14 of the pictures , how many pictures from her vacation did she still have ?

Ex Output:
22

Ex Input:
If a pair of shoes that cost 50 dollars was marked down by 8 % , how much do they cost now ?

Ex Output:
46

Ex Input:
While playing at the arcade , Luke won 2 tickets playing ' whack a mole ' and 13 tickets playing ' skee ball ' . If he was trying to buy candy that cost 3 tickets a piece , how many could he buy ?

Ex Output:
5