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: Adam had 48 books . If he sold 19 of them and used the money he earned to buy 38 new books , how many books would Adam have ?
Example Output: 67

Example Input: Tiffany uploaded 7 pictures from her phone and 13 from her camera to facebook . If she sorted the pics into 5 different albums with the same amount of pics in each album , how many pictures were in each of the albums ?
Example Output: 4

Example Input: Oliver had 35 dollars . For his birthday he got 50 more dollars but spent 84 on a new game . How much money does he have now ?
Example Output:
1