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: Mary picked 122 oranges and Jason picked 105 oranges from the orange tree . How many oranges were picked in total ?
Example Output: 227

Example Input: Mike had 33 quarters and 87 nickels in his bank . His dad borrowed 75 nickels from Mike . How many nickels does he have now ?
Example Output: 12

Example Input: Karen has 639 crayons . Cindy has 504 crayons . How many more crayons does Karen have than Cindy ?
Example Output:
135