idnr: 5080

3	2
					3
	6
				5
2
				3	4

Difficulty: Very easy (0)

idnr: 9192

					2
		1		3


	1		4
6

Difficulty: Very easy (0)

idnr: 3602

		1
	2	6			1
					5
1
3			2	1
			5

Difficulty: Very easy (0)

idnr: 8412

	1
4	5		1


		3		4	1
				2

Difficulty: Very easy (0)