280期：阴阳肖≤≤01,02,04,06,12,15,16,19,20,22,23,24,25,27,29,30,31,32,34,36,42,44,48,49≥≥开：20对
281期：阴阳肖≤≤01,03,04,06,08,14,15,16,17,19,23,25,26,27,29,33,34,35,36,40,41,42,48,49≥≥开：43错
282期：阴阳肖≤≤02,04,05,06,08,09,13,14,17,19,22,24,25,29,30,31,34,36,37,40,41,43,44,46≥≥开：34对
283期：阴阳肖≤≤01,03,04,06,07,09,10,11,12,14,17,18,20,22,28,30,31,32,34,40,44,47,48,49≥≥开：18对
284期：阴阳肖≤≤05,07,08,12,18,19,21,23,25,27,29,30,32,33,34,35,37,39,40,42,44,46,47,48≥≥开：20错
285期：阴阳肖≤≤02,04,06,09,11,12,14,16,17,18,23,25,28,29,30,33,34,37,38,39,40,41,44,47≥≥开：88