idnr: 474


2			1
3			2

Difficulty: Super easy (0)

idnr: 47

3
		3
	2
			4

Difficulty: Super easy (0)

idnr: 462


2			1
1			4

Difficulty: Super easy (0)

idnr: 1057

	1
4
			3
		2

Difficulty: Super easy (0)