idnr: 140

		4
4			3
1			2
	2

Difficulty: Super easy (0)

idnr: 539

	1		3


4		2

Difficulty: Super easy (0)

idnr: 150

	3
	4
		1
		2

Difficulty: Super easy (0)

idnr: 586

4
			1
2
			3

Difficulty: Super easy (0)