The little sloppy wanted to multiply a number by 8, but divided by 8, and then wanted to subtract 19 from the result, but added 19. After making a mistake, the little sloppy got a result of 30. What is the correct result?
小马虎想把一个数乘8，却除以了8，接着想把结果减去19，却加上了19，犯错之后，小马虎得到的结果为30，其正确的结果是多少？
<result>684</result>