4
	2
				3
		5

Difficulty: Very easy (0)

			2
		6		5	1
6	5		1
		4

Difficulty: Super easy (0)

	3			4
			1
		2
	4			5

Difficulty: Super easy (0)

4	1
	6
	5
				2
				1
				3	6

Difficulty: Super easy (0)