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: Maria has 3 boxes of eggs . Each box holds 7 eggs and there are 8 boxes in a case . How many eggs does Maria have ?
Example Output: 21

Example Input: Tom bought a skateboard for $ 9.46 , and spent $ 9.56 on marbles . Tom also spent $ 14.5 on shorts . In total , how much did Tom spend on toys ?
Example Output: 19.02

Example Input: Mrs. Hilt wants to make a border around her garden . She needs 125 rocks to complete the border . She has 64 rocks . How many more rocks does she need to complete the border ?
Example Output:
61