251期：<<05,10,11,12,14,20,22,24,27,29,35,38,41,44,45,49>>开：35中中中
252期：<<05,06,07,08,10,16,17,19,24,29,33,37,38,39,44,47>>开：23错错错
253期：<<07,08,10,13,14,18,21,23,27,30,34,35,41,43,45,46>>开：33错错错
254期：<<06,07,09,13,15,18,19,25,27,31,33,34,36,43,44,46>>开：中？