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:
Zoe baked 5 brownies , but needed 11 total for her party . If she used 7 cups of flour on each one , how much cups of flour does she still need ?

Ex Output:
42


Ex Input:
For the school bake sale Wendy made pastries . She baked 4 cupcakes and 29 cookies . After the sale she had 24 to take back home . How many pastries did she sell ?

Ex Output:
9


Ex Input:
While on vacation , Rachel took 6 pictures at the zoo and 9 at the museum . If she later deleted 11 of the pictures , how many pictures from her vacation did she still have ?

Ex Output:

4