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:
Ned was trying to expand his game collection . He bought 11 games from a friend and bought 22 more at a garage sale . If 19 of the games did n't work , how many good games did he end up with ?

Ex Output:
14


Ex Input:
Keith spent $ 136.01 on speakers , $ 139.38 on a CD player , and $ 112.46 on new tires . He wanted 3 CD 's for $ 6.16 , but did n't buy them . In total , how much did he spend ?

Ex Output:
387.85


Ex Input:
Patricia starts with 76 candies . Albert takes 5 away . How many candies does Patricia end with ?

Ex Output:

71