〖0次〗:04,08,10,16,17,19,23,25,26,27,28,35,36,42,43,46,47,（共17个）〖1次〗:01,02,05,11,12,14,18,20,21,22,30,31,33,34,37,38,39,40,41,44,45,48,49,（共23个）xx〖2次〗:03,06,07,09,24,（共5个）xxx〖3次〗:13,15,29,32,（共4个）xxx