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

Difficulty: Easy

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

Difficulty: Very Hard

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

Difficulty: Hard

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

Difficulty: Hard