253期：《《01,04,05,06,12,13,19,20,26,28,31,33,36,37,41,44》》开：33√
254期：《《07,10,13,17,18,19,20,23,26,28,37,38,40,42,44,49》》开：17√
255期：《《03,05,08,10,11,12,15,23,26,28,31,32,36,39,42,46》》开：42√
256期：《《04,05,06,08,09,11,13,23,28,32,34,35,36,39,47,48》》开：48√
257期：《《01,03,06,14,16,20,22,26,29,30,31,33,34,41,42,47》》开：中？