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:
Tessa has 4 apples . Anita gave her 5 more . She needs 10 apples to make a pie . Does she have enough to make a pie ?

Ex Output:
9


Ex Input:
Carol starts with 42 blocks . She loses 25 . How many blocks does Carol end with ?

Ex Output:
17


Ex Input:
There were 2 friends playing a video game online when 2 more players joined the game . If each player had 3 lives , how many lives did they have total ?

Ex Output:

12