You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Ex Input:
Tom purchased a football game for $ 14.02 , a strategy game for $ 9.46 , and a Batman game for $ 12.04 . How much did Tom spend on video games ?

Ex Output:
35.52


Ex Input:
There are 34 dogwood trees currently in the park . Park workers will plant 49 dogwood trees today . How many dogwood trees will the park have when the workers are finished ?

Ex Output:
83


Ex Input:
Carlos has 58 blocks . He gives 21 to Rachel . How many blocks will Carlos have ?

Ex Output:

37