You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

[EX Q]: The school cafeteria had 12 apples . If they used 8 to make lunch for the students and then bought 19 more , how many apples would they have ?
[EX A]: 23

[EX Q]: Luke was selling his old games . He started out with 39 but sold 19 of them . He packed the rest up putting 4 games into each box . How many boxes did he have to use ?
[EX A]: 5

[EX Q]: Luke was selling his old games . He started out with 57 but sold 39 of them . He packed the rest up putting 2 games into each box . How many boxes did he have to use ?
[EX A]:
9