idnr: 1990

2	3
1
			3
		1	4

Difficulty: Super easy (0)

idnr: 1683

			2
	2
		1
4

Difficulty: Super easy (0)

idnr: 2203

		2
1
			3
	4

Difficulty: Super easy (0)

idnr: 2944

	2
1			4
2			1
		4

Difficulty: Super easy (0)