idnr: 1159

		1
2
			2
	3

Difficulty: Very easy (0)

idnr: 5518


2			3
3			4

Difficulty: Very easy (0)

idnr: 2842

	3		1
4		1
	1		4
1		3

Difficulty: Super easy (0)

idnr: 5586

3		4	2
			4
4
2	4		3

Difficulty: Super easy (0)