10				2
					7		3		9
					10				3
5		4						2
		9		6	2				5
7				5	9		10
	5						7		6
3				1
6		5		10
			7				1

Difficulty: Hard (0)

4			7						2
	6					3	7		4
6		7				1		5	8
	8		5		10				9
									6
7
9				4		2		6
1	3		6				9		10
2		3	9					10
10						4			3

Difficulty: Super easy (0)

8		9		5	4	6
4	6	3		10				2
					9
10	5							8
	8	2
							8	7
	2							6	4
				4
	7				10		6	4	5
			10	8	7		3		1

Difficulty: Very easy (0)

	2			1
		7		10	9			1
									3
7	9	6							2
			6			10		3
	7		8			6
8							1	5	6
1
	5			7	2		4
					3			6

Difficulty: Easy (0)