idnr: 374

2
		3
	4
			1

Difficulty: Super easy (0)

idnr: 3734

			3
		2	4
1	3
2

Difficulty: Super easy (0)

idnr: 4194

	2
3			1
2			4
		1

Difficulty: Super easy (0)

idnr: 3897

1
4			3
3			4
			1

Difficulty: Super easy (0)