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:
There were 8 friends playing a video game online when 2 more players joined the game . If each player had 6 lives , how many lives did they have total ?

Ex Output:
60

Ex Input:
Joan purchased a basketball game for $ 5.2 , and a racing game for $ 4.23 . How much did Joan spend on video games ?

Ex Output:
9.43

Ex Input:
Kimberly has 5 Skittles . She buys 7 more . Later , Kimberly buys 18 oranges at the store . How many Skittles does Kimberly have in all ?

Ex Output:
12