You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division 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:
Dalton wants to buy a jump rope that costs $ 7 , a board game that costs $ 12 , and a playground ball that costs $ 4 . He has saved $ 6 from his allowance , and his uncle gave him $ 13 . How much more money does Dalton need to buy the jump rope , the game , and the ball ?

Ex Output:
4


Ex Input:
Vanessa had 13 music files and 30 video files on her flash drive . If she deleted 10 of the files , how many files were still on her flash drive ?

Ex Output:

33