idnr: 7

				2
		2			5
			3		1
6		3
1			2
	4

Difficulty: Super easy (0)

idnr: 3002

		4
	5			6


	4			1
			3

Difficulty: Very hard (0)

idnr: 2074

	4
	1		6


		5		2
				1

Difficulty: Super easy (0)

idnr: 847

	4
5
		3
			4
					5
				2

Difficulty: Super easy (0)