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

Difficulty: Super easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Very easy (0)

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

Difficulty: Very easy (0)