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

Difficulty: Super easy (0)

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

Difficulty: Hard (0)

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

Difficulty: Very easy (0)

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

Difficulty: Easy (0)