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

Difficulty: Super easy (0)

	1
4			1
	4		5
		5		1
		3			6
				3

Difficulty: Very hard (0)

	5				1
				6
		5			4
2			3
	3
6				4

Difficulty: Very easy (0)

		1	6
		4			5
					2
5
3			1
		2	4

Difficulty: Super easy (0)