History of question #693455
| When | Who | Action | New State |
|---|---|---|---|
| Jan Stránský | Answer | Answered | |
| Hanying Zhang | Reopen | Open | |
| Jan Stránský | Answer | Answered | |
| Hanying Zhang | Reopen | Open | |
| Jan Stránský | Answer | Answered | |
| Hanying Zhang | Confirm | Solved | |
| Hanying Zhang | Confirm | Solved |
