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 Q]: Context: 13 campers went rowing and 59 campers went hiking in the morning. 21 campers went rowing in the afternoon. 

 Question: How many campers went rowing in all?
[EX A]: 34

[EX Q]: Context: Mary is baking a cake. The recipe calls for 6 cups of flour and 13 cups of sugar. She already put in some cups of flour. If she still needs 8 more cups of flour than sugar 

 Question: How many more cups of flour does she need to add?
[EX A]: 21

[EX Q]: Context: After eating a hearty meal they went to see the Buckingham palace. There, Rachel learned that 703 visitors came to the Buckingham palace on the previous day. If there were 246 visitors on that day 

 Question: How many visited the Buckingham palace within 25 days?
[EX A]:
949