Given a math word problem, answer the following question. You might need to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the question and then only report the final numerical answer.

[EX Q]: after visiting france rachel 's sister bella requested that they see the buckingham palace in london . if they travelled 451 miles by land and 150 miles by sea across the english channel what is the total distance that they travelled ?
[EX A]: 601

[EX Q]: there is a snail problem in centerville . people work together to get rid 3482 snails but 8278 of them remain . about how many snails were originally in centerville ?
[EX A]: 11760

[EX Q]: on facebook debby had 63 photos of her friends and 23 photos of her family . how many photos did she have total ?
[EX A]:
86