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: Donald has 4 oranges . He finds another 5 . How many oranges does Donald have in all ?
Example Output: 9

Example Input: Mrs. Hilt has 40 markers . They are divided equally into 7 packages . Mrs. Hilt wants to know how many markers are in each package ?
Example Output: 5

Example Input: Mary had 7 nickels in her bank . Her dad gave her 5 more nickels . How many nickels does Mary have now ?
Example Output:
12