idnr: 876

	4		1
		3
	3
1		4

Difficulty: Super easy (0)

idnr: 3048

			4
	3
		2
2

Difficulty: Super easy (0)

idnr: 3996

3	1
4
			4
		1	3

Difficulty: Super easy (0)

idnr: 2309

3	1
	2
		4
		3	1

Difficulty: Super easy (0)