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.

[Q]: A store had 5 oranges in a bin . If they threw away 2 of the old ones and put 28 new ones in the bin how many would be in the bin ?
[A]: 31


[Q]: Melanie had 19 dimes in her bank . Her dad gave her 39 dimes and her mother gave her 25 dimes . How many dimes does Melanie have now ?
[A]: 83


[Q]: John had 33 socks . If he threw away 19 old ones that did n't fit and bought 13 new ones , how many socks would he have ?
[A]:
27