A and B

Posting something like a thunderbolt takes up space. Someone forced me to write it, and also put forward extremely evil conditions, so I created such a thunderbolt... Just for my own amusement. Someone's conditions are ancient, strong, complete, and their self-feeling is quite relevant. Finally, I would like to emphasize, □□, enter with caution. Finally, I said this is an abusive article, does anyone believe it? Conception: