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: Tim had 7 quarters and 9 nickels in his bank . His dad gave him 3 nickels and 5 pennies . How many nickels does Tim have now ?
Example Output: 12

Example Input: Craig starts with 5 Skittles . 2 are eaten by a hippopotamus . How many Skittles does Craig end with ?
Example Output: 3

Example Input: Elizabeth is inviting 5 friends to a party . She has 5 cookies . How many cookies will each friend get ?
Example Output:
1