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

Difficulty: Very easy

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

Difficulty: Very easy

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

Difficulty: Hard

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

Difficulty: Hard