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

Difficulty: Easy

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

Difficulty: Very easy

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

Difficulty: Very Hard

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

Difficulty: Medium