idnr: 1113

				1
	2

2	3			1
				3

Difficulty: Medium

idnr: 123

3
2			1
	3

1				2

Difficulty: Easy

idnr: 1296

				1
	2			3
			1

3				2

Difficulty: Easy

idnr: 1084

1

		3
2		1	2
3

Difficulty: Easy