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.

Ex Input:
Context: Because of the decision Sofia asked the students to suggest specific types of food from a total of 66 choices. If 450 students suggested adding mashed potatoes 38 suggested adding bacon to the menu and the rest did not participate 

 Question: How many students participated in the suggestion of new food items?

Ex Output:
488


Ex Input:
Context: After eating a hearty meal they went to see the Buckingham palace. There, Rachel learned that 512 visitors came to the Buckingham palace that day. If there were 471 visitors the previous day and 808 visitors the day before that 

 Question: How many visited the Buckingham palace within the past 89 days?

Ex Output:
1791


Ex Input:
Context: Edward spent $ 17. Then he received $ 10 from his friend. Now he has $ 7. 

 Question: How much did Edward have before he spent his money?

Ex Output:

14