284期：（（03,04,06,15,27,31,32,33,38,39,43,44,45,47,48,49））开：32中中中
285期：（（05,15,16,18,19,20,21,22,25,26,28,32,36,37,38,46））开：19中中中
286期：（（08,09,11,14,15,23,24,26,31,32,35,36,44,45,46,47））开：24中中中
287期：（（01,02,05,09,13,18,19,21,24,27,29,31,32,38,39,40））开：08错错错
288期：（（07,08,13,16,18,21,26,30,34,36,38,39,40,43,45,47））开：中？