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