一道数学题

91: 100, 101, 102, 103, 104, 105, 106, 65438.207,208,209,300,301,302,303,304,305,306,307,308,309,400,401,402,403,404,405,406,407,408,409,500,501,502,503,504,505,506,507,508,509, 600,601,602,603,604,605,606,607,608,609,700,701,702,703,704,705,706,707,708,709,800,801,802,803,804,805,806,807,808,809,900,901,902,903,904,905,906,907,908,909,1000