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

Difficulty: Hard

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

Difficulty: Very easy

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

Difficulty: Easy

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

Difficulty: Medium