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