3
6
		3
			2
					3
	1

Difficulty: Super easy (0)

		6
3
				4	2
4	3
					3
			5

Difficulty: Super easy (0)

				2	5
2
					6
5	3

Difficulty: Super easy (0)

	1		3
6
		1
			6
					2
		3		1

Difficulty: Very easy (0)