idnr: 24171

	1
		6		5
			5		2
6		5
	2		3
				3

Difficulty: Very easy (0)

idnr: 54645

	4				6
			3
			1	4
	5	1
		3
3				2

Difficulty: Very easy (0)

idnr: 21804

5
	1				3
					1
1
2				3
					4

Difficulty: Easy (0)

idnr: 13909

3				1
	1		4
		6
			6
		2		4
	4				3

Difficulty: Very easy (0)