History of question #698980
| When | Who | Action | New State |
|---|---|---|---|
| Jan Stránský | Request for more information | Needs information | |
| 孙灿 | Give more information | Open | |
| Jan Stránský | Request for more information | Needs information | |
| 孙灿 | Give more information | Open | |
| Jan Stránský | Answer | Answered | |
| 孙灿 | Confirm | Solved | |
| 孙灿 | Confirm | Solved |
