〖0次〗:01,02,04,06,07,08,10,11,12,14,15,16,20,22,23,24,25,26,27,28,30,31,32,33,34,35,36,37,39,40,41,42,43,44,45,（共35个）

〖1次〗:03,05,09,13,17,19,21,29,46,47,48,（共11个）xxx

〖2次〗:18,38,49,（共3个）xxx