3		1	6
		1
	4
				4
			5
6	1		4

Difficulty: Super easy (0)

6
	4		3
	5		4
		3		1
		6		4
					1

Difficulty: Very easy (0)

		4
	3		5	1
3
					5
	5	1		3
			6

Difficulty: Super easy (0)

			6
		5			4
		6			1
2			3
1			4
		2

Difficulty: Super easy (0)