N-B-U-T Online Judge :: NBUT 2012 Weekly - 8th Sep (Luo Tianyi) :: Chihuo VIII

[H] Chihuo VIII - Do Accounts
时间限制: 1000 ms　内存限制: 65535 K
问题描述
After Zhengling had hunted down Tianyi, they come back to home.
To their surprise, this eating journey just cost them little money. It's between 1 and 100.

Tianyi is so naughty that she play with this number immediately. She found that this number can be represented by mixed numbers like that:
```
  B
A---
  C
```
And each digits of 1~9 will only and must appear once.
For example, the number 6 can be represented like that:
```
     7436
6 = 2----
     1859
```
Now Tianyi invites you to help her find all the representions for one number between 1 and 100.
输入
This problem contains several cases. Input until 0.
Each cases contains only one integer N (1 <= N <= 100).
输出
For each case, you should output all the representions. Order by A increasing, then order by B increasing.
If there's no represention, output "impossible".
样例输入
```
45
1
0
```
样例输出

     3564
45=27----
      198
     4172
45=38----
      596
impossible