277期：16码[[04,07,08,12,14,16,20,21,30,34,36,38,40,41,44,46]]开：16√
278期：16码[[03,08,12,14,23,27,29,30,31,33,36,37,38,41,47,48]]开：28x
279期：16码[[01,02,03,07,08,12,16,17,18,27,34,35,36,38,40,46]]开：27√
280期：16码[[01,02,05,11,17,20,22,28,30,35,38,40,41,44,47,49]]开：//