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

Difficulty: Hard

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

Difficulty: Medium

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

Difficulty: Very Hard

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

Difficulty: Very Hard