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

Difficulty: Very easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Super easy (0)