排队

湖北省武汉市红领巾小学 苏琴供稿

A,B,C,D,E,F line up to have a training class.A、B、C、D、E、F 6个人列成一排开始训练。

F is not the last one,and there are two persons between him and the last one;F没有排在最后，而且他和最后一个人之间还有两个人；

E is not the last one,either;E不是最后一个；

There are at least four persons in front of A,and A is not the last one either;在A的前面至少还有四个人，但他没有排在最后；

D is not the first one,and there are at least two persons in front of him;D没有排在第一位，但他前后至少还有两个人；

C is neither the first nor the last.C没有排在最前面，也没有排在最后。

How do the six line up?他们6个人的顺序是怎么排的？