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

Difficulty: Hard

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

Difficulty: Easy

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

Difficulty: Hard

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

Difficulty: Easy