There are 2, 4, 6, 8, and 10 small balls in five boxes A, B, C, D, and E in sequence. The first child finds the box with the most balls, takes out 4 balls and puts a ball in each of the other boxes. The second child also finds the box with the most balls, takes 4 out of it and puts a ball in each of the other boxes. And so on, ..., when the 2011 children are finished, how many balls are there in the E box.
A、B、C、D、E五个盒子中依次放有2、4、6、8、10个小球．第一个小朋友找到放球最多的盒子，从中拿出4个放在其他盒子中各一个球．第二个小朋友也找到放球最多的盒子，从中拿出4个放在其他盒子中各一个球．依此类推，…，当2011个小朋友放完后，E盒中放有多少个球．
<result>6</result>