```
3
A UP
B UP
C DOWN
```
你的A会把B的位置占掉。
by Gumbo @ 2022-10-05 09:56:53
@[Velvet](/user/443675)
by Gumbo @ 2022-10-05 09:56:57
唯一解：
```
C
A
B
```
你的：
```
C
B
A
```
by Gumbo @ 2022-10-05 09:58:05
@[OI_Beater](/user/478861) thanks！
by 紊莫 @ 2022-10-05 10:00:18