249期：【06,08,09,18,20,24,30,32,33,42,44,45】开（23）√√
250期：【04,07,10,16,18,22,25,28,31,34,40,46】开（14）√√
251期：【07,08,10,19,20,22,23,32,34,42,44,46】开（30）√√
252期：【03,04,13,14,15,20,24,25,26,29,41,43】开（？）