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.

Example Input: Katie had 7 pages of math homework and 3 pages of reading homework . If each page had 9 problems on it , how many problems did she have to complete total ?
Example Output: 90

Example Input: At the fair there were 9 people in line for the bumper cars . If 6 of them got tired of waiting and left and 3 more got in line , how many people would be in line ?
Example Output: 6

Example Input: Ned bought 14 boxes of chocolate candy and gave 7 to his little brother . If each box has 6 pieces inside it , how many pieces did Ned still have ?
Example Output:
42