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:
A restaurant sold 49 hamburgers last week . How many hamburgers on average were sold each day ?

Ex Output:
7


Ex Input:
For a birthday party Tom bought 4 regular sodas and 52 diet sodas . If his fridge would only hold 7 on each shelf , how many shelves would he fill up ?

Ex Output:
8


Ex Input:
Zoe had 42 bottles of water in her fridge . If she drank 25 of them and then bought 30 more , how many bottles would she have ?

Ex Output:

47