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:
Lucy has an aquarium with 212 fish . Lucy wants to buy 68 more fish . How many fish would Lucy have then ?

Ex Output:
280

Ex Input:
A waiter had 19 customers to wait on . If 14 customers left and he got another 36 customers , how many customers would he have ?

Ex Output:
41

Ex Input:
There were 5 friends playing a video game online when 2 more players joined the game . If each player had 8 lives , how many lives did they have total ?

Ex Output:
56