idnr: 3575

4			3
		4
	1
3			1

Difficulty: Super easy (0)

idnr: 2230

		1	4


4	3

Difficulty: Super easy (0)

idnr: 1075

2			4
		1
	2
3			1

Difficulty: Super easy (0)

idnr: 3993

	3	1
			3
2
	1	2

Difficulty: Super easy (0)