You are given a math word problem and you are supposed to apply an addition mathematical operator on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Input: Consider Input: Context: Dan has $ 3 left with him after he bought a candy bar for $ 2. 

 Question: How much money did he have initially?

Output: 5


Input: Consider Input: Context: Every day Ryan spends 6 hours on learning english 7 hours on learning chinese and 3 hours on learning spanish. 

 Question: How many hours does he spend on learning english, chinese and spanish in all?

Output: 16


Input: Consider Input: Context: There are many different books in the ' crazy silly school ' series. If you have read 13 of the books and are yet to read 8 books 

 Question: How many books are there in the ' crazy silly school ' series?


Output: 21