3个数字组成三位数有多少种

简介：In the past three years, every winter, a large number of tribesmen died in tents due to lack of medical treatment and medicine. The number of patients was increasing, and the morale of tribesmen was getting lower and lower. Cries could be heard all the time at night. As the left-wing prince of Karaqin, Duanluobu was extremely anxious as he saw his property dwindling day by day.