This is a copy of another problem.

	文件名	大小
	1.in	517 Bytes
	1.out	187 Bytes
	2.in	633 Bytes
	2.out	529 Bytes
	3.in	254 Bytes
	3.out	137 Bytes
	4.in	16.5 KiB
	4.out	5.5 KiB
	5.in	16.5 KiB
	5.out	5.5 KiB
	6.in	16.5 KiB
	6.out	5.5 KiB
	7.in	16.5 KiB
	7.out	5.5 KiB
	8.in	16.5 KiB
	8.out	5.5 KiB
	9.in	16.5 KiB
	9.out	5.5 KiB
	config.yaml	648 Bytes