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:
At a restaurant each adult meal costs $ 7 and kids eat free . If a group of 13 people came in and 9 were kids , how much would it cost for the group to eat ?

Ex Output:
28


Ex Input:
A chef needs to cook 15 potatoes . He has already cooked 8 . If each potato takes 9 minutes to cook , how long will it take him to cook the rest ?

Ex Output:
63


Ex Input:
For Halloween Haley scored 33 pieces of candy . She ate 17 pieces the first night and then her sister gave her 19 more pieces . How many pieces of candy does Haley have now ?

Ex Output:

35