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 Q]: There are 8 apples in a pile on the desk . Each apple comes in a package of 11 . 5 apples are added to the pile . How many apples are there in the pile ?
[EX A]: 13

[EX Q]: Joan 's cat had 8 kittens . She gave 2 to her friends . How many kittens does she have now ?
[EX A]: 6

[EX Q]: For Halloween Katie and her sister combined the candy they received . Katie had 8 pieces of candy while her sister had 23 . If they ate 8 pieces the first night , how many pieces do they have left ?
[EX A]:
23