1
	2
				5	2
	3		4
		4		1

Difficulty: Super easy (0)

1
	6
2	1
				3	2
				4
					3

Difficulty: Super easy (0)

1
	2		4
		5		6
					4

Difficulty: Super easy (0)

			2	5
6
					6
	3	5

Difficulty: Super easy (0)