idnr: 530


3		1
	1		2

Difficulty: Super easy (0)

idnr: 2005

2			1
		2
	4
1			4

Difficulty: Super easy (0)

idnr: 1228

			1
	2	3
	4	1
2

Difficulty: Super easy (0)

idnr: 954

	3
4			1
3			2
		1

Difficulty: Super easy (0)