History of question #697545
| When | Who | Action | New State |
|---|---|---|---|
| Jan Stránský | Answer | Answered | |
| Liu Changdong | Comment | Answered | |
| Jan Stránský | Answer | Answered | |
| Liu Changdong | Comment | Answered | |
| Jan Stránský | Answer | Answered | |
| Liu Changdong | Confirm | Solved | |
| Liu Changdong | Comment | Solved | |
| Liu Changdong | Confirm | Solved | |
| Jan Stránský | Comment | Solved |
