277期：阴阳肖≤≤01,02,03,04,10,11,16,17,19,22,23,25,26,28,29,31,35,38,40,42,45,47,48,49≥≥开：16对
278期：阴阳肖≤≤03,04,06,07,08,09,11,17,19,20,24,27,28,30,35,37,38,39,40,41,43,45,46,48≥≥开：28对
279期：阴阳肖≤≤01,02,03,04,06,09,10,11,14,17,19,22,23,29,30,31,32,34,40,41,42,44,47,49≥≥开：27错
280期：阴阳肖≤≤01,02,03,05,06,15,16,17,21,23,24,28,29,31,33,35,37,38,42,44,46,47,48,49≥≥开：42对
281期：阴阳肖≤≤02,04,05,06,07,10,11,12,13,14,15,19,21,23,26,28,30,33,43,45,46,47,48,49≥≥开：47对
282期：阴阳肖≤≤01,05,07,08,10,15,18,23,24,25,29,30,31,33,34,35,36,37,39,41,44,46,48,49≥≥开：88