History of question #295319
| When | Who | Action | New State |
|---|---|---|---|
| qianguozheng | Give more information | Open | |
| qianguozheng | Give more information | Open | |
| qianguozheng | Give more information | Open | |
| qianguozheng | Give more information | Open | |
| Alex Rousskov | Answer | Answered | |
| qianguozheng | Confirm | Solved |
