idnr: 2332

	4	2
			4
3
	2	3

Difficulty: Super easy (0)

idnr: 2152

		2
2			1
4			3
	3

Difficulty: Super easy (0)

idnr: 667

3
1
			2
			4

Difficulty: Super easy (0)

idnr: 1399

		1	4


2	1

Difficulty: Super easy (0)