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: Dan had 97 baseball cards , and 8 were torn . Sam bought 15 of Dan 's baseball cards . How many baseball cards does Dan have now ?
Example Output: 82

Example Input: Janet has 57 apples . She finds another 95 . How many apples does Janet have in all ?
Example Output: 152

Example Input: I walk 1 mile every 15 minutes . I walked 3 miles . How many minutes did it take me ?
Example Output:
45

