idnr: 698

	2
	3		1
1		2
		3

Difficulty: Super easy (0)

idnr: 33

			1
		2
	2
4

Difficulty: Very easy (0)

idnr: 158

2			4


1			3

Difficulty: Super easy (0)

idnr: 179

4	2


		3	4

Difficulty: Super easy (0)