求得的92位数,从9排列即为最大,原数为1234567891011.1819202122.2930.100,划去100位数,1-8,为8个数,1011...181,为19个数,2021...282,19个数,划去100个数,
（100-8）/19=4余16,舍去1-8,10-181,20-282,30-383,40-484,50-57,所以前13位为9999958596061