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: Melanie had 10 quarters and 17 pennies in her bank . Her dad gave her 27 pennies and her mother gave her 19 pennies . How many pennies does Melanie have now ?
Example Output: 63

Example Input: Gwen bought two coloring books . One had 10 pictures and the other had 39 . After one week she had already colored 13 of the pictures . How many pictures does she still have to color ?
Example Output: 36

Example Input: At the fair Adam bought 13 tickets . After riding the ferris wheel he had 4 tickets left . If each ticket cost 9 dollars , how much money did Adam spend riding the ferris wheel ?
Example Output:
81