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:
Maria was making baggies of cookies with 3 cookies in each bag . If she had 2 chocolate chip cookies and 16 oatmeal cookies , how many baggies could she make ?

Ex Output:
6


Ex Input:
While playing at the arcade , Ned won 26 tickets playing ' whack a mole ' and 19 tickets playing ' skee ball ' . If he was trying to buy candy that cost 9 tickets a piece , how many could he buy ?

Ex Output:
5


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