idnr: 1716

		2
1
			3
	3

Difficulty: Super easy (0)

idnr: 3567

		1
	4	3
	3	4
	1

Difficulty: Super easy (0)

idnr: 486

4
		3
	2
			1

Difficulty: Super easy (0)

idnr: 2301

3
2
			1
			2

Difficulty: Super easy (0)