018期：［03,04,05,06,12,15,20,21,23,24,27,30,31,33,34,36,38,39,41,42,43,47,48,49］（特围）开31准
019期：［06,07,08,10,11,12,13,15,20,21,25,28,29,31,34,35,37,39,40,43,44,45,46,49］（特围）开40准
020期：［01,02,03,05,06,07,13,16,17,18,19,20,22,25,26,27,30,32,34,35,37,46,47,48］（特围）开10错
021期：［01,03,04,07,08,09,11,13,14,19,20,21,24,27,28,30,32,33,38,40,43,44,47,49］（特围）开？？？对