idnr: 1147

1
	4
		2
			3

Difficulty: Super easy (0)

idnr: 1326

1
2
			4
			1

Difficulty: Super easy (0)

idnr: 147


			3
4

Difficulty: Super easy (0)

idnr: 825

2
			4
3
			1

Difficulty: Super easy (0)