idnr: 6237

4
		3
	3
			1

Difficulty: Very easy (0)

idnr: 7491

		2	3
4		3
	3		4
3	2

Difficulty: Super easy (0)

idnr: 3491

	1
			3
3
		4

Difficulty: Very easy (0)

idnr: 1682

3		2
1
			1
	2		3

Difficulty: Super easy (0)