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.

Ex Input:
Sara 's high school played 12 basketball games this year . The team won most of their games . They were defeated during 4 games . How many games did they win ?

Ex Output:
8


Ex Input:
Joan purchased a basketball game for $ 5.2 , and a racing game for $ 4.23 . How much did Joan spend on video games ?

Ex Output:
9.43


Ex Input:
Larry has 67 cards . Dennis takes 9 away . How many cards will Larry have ?

Ex Output:

58