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:
In one year , for the election for president there were 76.7 million voters , whereas in the next year there were 129.9 million voters . Find the percentage change in the number of voters ?

Ex Output:
69.4


Ex Input:
Nancy had 101 homework problems . She finished 47 of them but still had 6 pages of problems to do . If each page has the same number of problems on it , how many problems are on each page ?

Ex Output:
9


Ex Input:
While shopping for music online , Faye bought 2 country albums and 3 pop albums . Each album came with a lyric sheet and had 6 songs . How many songs did Faye buy total ?

Ex Output:

30