1
	5
4			5
		3			6
				1
			6

Difficulty: Very hard (0)

3				4
2		6
			2		3
	6				1

Difficulty: Very easy (0)

3	6	5
		2
			6
			4	3	1

Difficulty: Super easy (0)

	3
	2
5				3
	1				4
				1
				5

Difficulty: Very easy (0)