There are two boxes of balls. If you take out 3 balls from the first box and put them into the second box, then the first box still has 2 more balls than the second box. How many more balls are there in the first box than in the second box?
有两盒球．如果从第一盒内拿出3个放入第二盒，这时第一盒还比第二盒多2个，原来第一盒比第二盒多几个球？
<result>8</result>