273期：【06,10,13,14,16,22,23,26,27,32,36,46】开（05）√√
274期：【02,07,10,15,17,20,21,29,30,35,40,43】开（33）√√
275期：【01,06,09,17,18,19,22,24,29,38,39,49】开（17）××
276期：【04,08,12,13,15,19,27,28,33,38,40,41】开（14）√√
277期：【01,03,09,12,22,25,30,31,32,33,42,45】开（11）√√
278期：【03,07,09,13,23,25,27,33,35,39,40,43】开（？）