3
		1			5		2
	4			2
							7
1
			1			2
7		5			1
6

Difficulty: Umulig (3379)

				2		7
			4
		1		5	8	2
		7					6
8					4
	1	4	5		6
				1
	4		2

Difficulty: Very easy (0)

					4	7
6		1		8
		8				3
							5
1
	8				5
			5		8		1
	3	6

Difficulty: Easy (0)

8					5
					6		2
	1						4
					1		3
7		6
2						8
4		3
		8					7

Difficulty: Very hard (0)