+----------------------------------------+
                   /                                        /|
                  /                                        / |
                 /                                        /  |
                +----------------------------------------+   |
                |                                        |   |
                |                                        |   |
                |                                        |   |
                |         ###    #####   ###             |   |
                |         #  #     #     #  #            |   |
                |         ###      #     ###             |   |
                |         # #      #     #               |   |
                |         #  # # ##### # #    #          |   |
                |                                        |   |
                |         Unknown_Error's grave          |   |
                |                                        |   |
                |                                        |   |
                | Famous saying:Luogu will be notorious  |   |
                |                                        |   |
                |                  ----                  |   |
                |                  ||||                  |   |
                |                  ||||                  |   |
                |                  ||||                  |   |
                |            ------||||------            |   |
                |            ||||||||||||||||            |   |
                |            ------||||------            |   |
                |                  ||||                  |   |--------------------+
                |                  ||||                  |   |                   /|
                |                  ||||                  |   |                  / |
                |                  ||||                  |   |                 /  +
               /|                  ||||                  |   |                /  /
              / |                  ----                  |   |               /  /
             /  |                                        |   |              /  /
            /   |     Made by   f_hxr_  (uid:754467)     |   |             /  /
           /    |               2023.08.12               |   |            /  /
          /     |                                        |   |           /  /
         /      |         Want to know anymore?          |   +          /  /
        /       |    See "BV1fb411w7Qj" in bilibili.     |  /          /  /
       /        |                                        | /          /  /
      /         |                                        |/          /  /
     /          +----------------------------------------+          /  /
    /                                                              /  /
   /                                                              /  /
  /                                                              /  /
 /                                                              /  /
+--------------------------------------------------------------+  /
|                                                              | /
|                                                              |/
+--------------------------------------------------------------+