idnr: 455

			2
	4
		3
4

Difficulty: Super easy (0)

idnr: 1646

		4
	3
		2
	2

Difficulty: Super easy (0)

idnr: 140

	2
3			2
4			1
		4

Difficulty: Super easy (0)

idnr: 4237

2
	3	2
	1	4
			1

Difficulty: Super easy (0)