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				|         Unknown_Error's grave          |   |
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				| Famous saying:Luogu will be notorious  |   |
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				|                  ----                  |   |
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				|                  ||||                  |   |-------------------+
				|                  ||||                  |   |                  /|
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			   /|                  ||||                  |   |                /  +
			  / |                  ||||                  |   |               /  /
			 /  |                  ----                  |   |              /  /
			/   |                                        |   |             /  /
		   /	|     Made by ----------(uid:575655)     |   |            /  /
		  / 	|                                        |   |           /  /
		 /  	|         Want to know anymore?          |   +          /  /
		/   	|    See "BV1fb411w7Qj" in bilibili.     |  /          /  /
	   /		|                                        | /          /  /
	  / 		|                                        |/          /  /
	 /          +----------------------------------------+          /  /
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