〖0次〗:01,06,07,12,22,25,32,43,44,45,46,(共11个)〖1次〗:21,26,27,28,29,30,31,(共7个)〖2次〗:08,09,20,33,36,37,39,40,41,49,(共10个)〖3次〗:02,03,04,05,10,11,13,14,15,16,17,18,19,23,24,34,35,38,42,47,48,(共21个)