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 Batman game for $ 13.6 , and a Superman game for $ 5.06 . Tom already owns 2 games . How much did Tom spend on video games ?

Ex Output:
18.66


Ex Input:
A book store had 4 books in the bargin bin . If they sold 3 books , but then put 10 more in the bin , how many books would be in the bin ?

Ex Output:
11


Ex Input:
Bonnie 's science class recorded the rainfall each day . They recorded 0.16666666666666666 centimeter of rain on Monday , 0.4166666666666667 centimeter of rain on Tuesday , and 0.08333333333333333 centimeter of rain on Wednesday . How many centimeters of rain did the class record in all ?

Ex Output:

0.6666666666666666