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:
At the fair there were 10 people in line for the bumper cars . If 2 of them got tired of waiting and left and 2 more got in line , how many people would be in line ?

Ex Output:
10

Ex Input:
Tommy had some balloons . His mom gave him 34 more balloons for his birthday . Then , Tommy had 60 balloons . How many balloons did Tommy have to start with ?

Ex Output:
26

Ex Input:
While playing at the arcade , Frank won 33 tickets playing ' whack a mole ' and 9 tickets playing ' skee ball ' . If he was trying to buy candy that cost 6 tickets a piece , how many could he buy ?

Ex Output:
7