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.
One example is below.
Q: robin bought 11 sodas for her and her friends . if they only drank 3 of them how many extras did she have ?
A: 8
Rationale: Extra sodas is total - drank = 11-3 = 8
Q: cindy and dan have the same number of stickers . cindy used 15 of her stickers . dan bought 18 more stickers . how many more stickers did dan have than cindy then ?
A:
33