245期：<<05,09,12,15,17,21,23,24,30,32,35,36,39,40,45,48>>开：39中中中
246期：<<01,05,12,19,22,27,29,30,31,32,35,36,37,38,41,46>>开：16错错错
247期：<<04,05,13,21,22,25,26,27,28,29,31,33,34,40,46,49>>开：29中中中
248期：<<07,12,13,14,16,17,19,22,24,30,31,37,39,43,44,47>>开：15错错错
249期：<<02,05,10,11,12,13,24,28,30,32,33,37,40,44,47,48>>开：02中中中
250期：<<04,07,08,11,13,17,20,24,28,29,30,31,33,34,44,49>>开：04中中中
251期：<<02,03,09,10,12,14,23,24,26,28,31,34,37,39,41,43>>开：中？