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: Victor and his friend were buying trick decks from the magic shop for 8 dollars each . How much did they spend if Victor bought 6 decks and his friend bought 2 decks ?

Output: 64


Input: Consider Input: Emily had 7 coloring books . If she gave away 2 of them , but then bought 14 more , how many would she have total ?

Output: 19


Input: Consider Input: David had 4000 dollars invested for 0.25 of a year at a simple rate of 6.1 % . How much interest did he earn ?


Output: 61