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