末“3”位数:757,257 末“4”位数:9445,7445,5445,3445,1445,4475,9475 末“5”位数:22999,72999,34861 末“6”位数:947429,747429,547429,347429,147429 末“7”位数:4047524,6047524,8047524,2047524,0047524,5579003 末“8”位数:78822610,28822610,25675512(第9组)