018期：＜24码＞（02,03,04,06,08,09,11,13,17,20,22,23,24,28,30,32,36,39,40,42,43,44,48,49）开：23对
019期：＜24码＞（06,07,10,15,16,22,23,25,26,29,30,32,33,35,37,39,40,41,44,45,46,47,48,49）开：27错
020期：＜24码＞（01,02,04,07,08,12,15,17,19,20,22,23,25,29,30,31,33,38,39,40,45,46,48,49）开：16错
021期：＜24码＞（03,07,08,09,10,14,16,18,21,23,24,26,27,29,31,33,36,37,40,43,45,46,47,48）开：00