5‘4‘2‘3‘2‘2‘3‘2‘2‘4‘4‘1‘1‘2‘3‘1‘3‘1‘3‘4‘2‘
〖0次〗:04,48,(共2个)
〖1次〗:09,13,22,32,38,43,49,(共7个)
〖2次〗:01,02,05,06,10,24,27,30,31,35,36,37,40,44,46,(共15个)
〖3次〗:07,08,15,18,26,28,29,33,39,41,42,45,(共12个)
〖4次〗:03,11,14,16,21,23,25,34,47,(共9个)
〖5次〗:12,17,20,(共3个)
〖6次〗:19,(共1个)