@[kkksc03](/user/1)
by aichuan51396 @ 2021-10-07 19:50:40
管理员楼上（
by xieyikai2333 @ 2021-10-07 19:50:56
Cu Ball
by Celestial_Intertwine @ 2021-10-07 19:51:58
@[202112xyk](/user/380019) 您错了（（（
by Mysterious_Mini @ 2021-10-07 19:52:16
@[kkksc03](/user/1)
by wbs200 @ 2021-10-07 19:52:46
管理员楼上（
by _l_l_l_l_l_ @ 2021-10-07 19:53:25
~~qp~~
by YGB_XU @ 2021-10-07 19:53:56
~~管理员同楼~~
by xieyikai2333 @ 2021-10-07 19:55:56
哪里？我是不是可以去日本当裁判了（
by 一只大龙猫 @ 2021-10-07 19:58:03
@[一只大龙猫](/user/511907)
> 面朝外的同学往右边数 $s$ 个就是编号增加 $s$
by Eason_AC @ 2021-10-07 20:02:07