285期:12346789头√
开:1440
286期:01245679头√
开:5198
287期:01235678头
开:
285期:02345789尾√
286期:02345789尾√
287期:01235678尾
284期头尾合:01345678√
开:3378
285期头尾合:12345689√
286期头尾合:13456789√
287期头尾合:01234569