219期半数<<02,04,07,08,11,13,14,18,20,22,23,24,25,27,28,30,35,36,37,38,39,41,42,43,44,46,48,49>>】开25准
220期半数<<02,03,04,09,10,11,13,14,15,16,18,22,23,24,25,26,27,28,32,33,34,35,39,40,43,44,46,48>>】开30错
221期半数<<04,05,07,08,09,10,11,12,13,15,16,20,22,24,25,28,30,31,32,33,35,37,38,40,41,42,44,45>>】开30准
222期半数<<02,03,04,06,07,09,10,11,12,13,15,19,20,22,24,25,26,32,33,34,35,37,38,39,42,43,47,49>>】开20准
223期半数<<04,05,08,09,15,17,18,19,20,21,22,23,25,26,27,28,29,31,33,35,41,42,43,44,46,47,48,49>>】开01错
224期半数<<01,02,03,04,05,06,08,10,11,13,14,17,19,20,21,29,31,32,33,34,35,37,41,42,43,46,48,49>>】开？？