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.

Input: Consider Input: zoe bought an app that cost $ 5 dollars . then each month you have to pay $ 8 to play online . if she played the game online for 2 months how much money would she have spent total for the app and the online access ?

Output: 21


Input: Consider Input: christian and his parents went to mt . falton national park for the weekend . they were welcomed warmly by the rangers who invite volunteers and call them `` earth keepers '' . the junior ranger asked christian to help him place 420 seedlings in packets . if every packet needs to contain 7 seeds how many packets do they need ?

Output: 60


Input: Consider Input: the store has cd 's and dvd 's that you need . how many packs of dvd 's can you buy with 132 dollars if 1 pack costs 12 dollars ?


Output: 11