305期：<<04,07,11,13,15,18,20,25,26,32,33,34,36,40,42,46>>开：20中中中
306期：<<07,08,10,11,13,15,18,21,23,28,38,39,40,42,47,49>>开：38中中中
307期：<<01,02,03,06,16,19,20,22,24,27,31,32,35,37,43,45>>开：32中中中
308期：<<07,11,13,15,20,22,24,25,27,32,35,36,38,40,44,48>>开：17错错错
309期：<<03,04,05,09,14,18,21,25,27,28,30,32,34,35,36,46>>开：44错错错
310期：<<02,05,06,09,10,19,23,25,36,38,39,42,43,44,45,48>>开：19中中中
311期：<<03,06,08,12,14,18,30,31,32,33,35,37,38,40,41,49>>开：中？