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:
If a pair of shoes that cost 50 dollars was marked down by 8 % , how much do they cost now ?

Ex Output:
46


Ex Input:
Tim got 3 nickels and 13 dimes for shining shoes , and in his tip jar found 7 dimes and 9 half - dollars . How much money did Tim get ?

Ex Output:
6.65


Ex Input:
For homework Faye had 13 math problems and 2 spelling problems . If she can finish 3 problems in an hour how long will it take her to finish all the problems ?

Ex Output:

5