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:
What is 80 % of 40 ?

Ex Output:
32


Ex Input:
While on vacation , Gwen took 41 pictures at the zoo and 29 at the museum . If she later deleted 15 of the pictures , how many pictures from her vacation did she still have ?

Ex Output:
55


Ex Input:
A waiter had 9 tables he was waiting on , with 2 women and 6 men at each table . How many customers total did the waiter have ?

Ex Output:

72