You are given a math word problem and you are supposed to apply a single mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report final the numerical answer.

Example Input: Each child has 2 candies . If there are 9 children , how many candies are there in total ?
Example Output: 18

Example Input: Mark sprinted 24 miles at 6 miles per hour . How long did Mark sprint ?
Example Output: 4

Example Input: Sam found 35 seashells on the beach , he gave Joan 18 of the seashells . How many seashells does he now have ?
Example Output:
17