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

Difficulty: Easy

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

Difficulty: Easy

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

Difficulty: Very easy

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

Difficulty: Hard