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: There are 27 pencils in the drawer . Nancy placed 45 more pencils in the drawer . How many pencils are now there in total ?
Example Output: 72

Example Input: Megan had 49 markers . Robert gave her 39 more markers . How many markers does Megan have altogether ?
Example Output: 88

Example Input: Ernest starts with 17 crayons . Jennifer takes 6 away . How many crayons does Ernest end with ?
Example Output:
11