You will be given a definition of a task first, then some input of the task.
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.

James had 39 stickers . He got some more stickers for his birthday . Then he had 61 stickers . How many stickers did James get for his birthday ?
Output:
22