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: While shopping for music online , Isabel bought 4 country albums and 5 pop albums . Each album came with a lyric sheet and had 8 songs . How many songs did Isabel buy total ?

Output: 72

Input: Consider Input: At the fair there were 30 people in line for the bumper cars . If 10 of them got tired of waiting and left and 5 more got in line , how many people would be in line ?

Output: 25

Input: Consider Input: A toy store had 6 giant stuffed bears in stock when they got another shipment with 18 bears in it . The put the bears onto shelves with 6 on each shelf . How many shelves did they use ?
Output: 4