6		3	2
9		5			4
		6	4	7		2		9
								7	4
					10		5
		1		5
5	4
	10		6		9	7	4
				2			9		7
	7	9		10

Difficulty: Very easy (0)

3		6	4			2
2	1		9			10		6
8
	9			6	3
			7	9	5	1	4
		1	6	2	8	7
				3	10			7
									8
	3		5			8		10	7
			1			5	2		4

Difficulty: Super easy (0)

8			2	1			3		6
		7	3
			10				4
2					6				8
	10	4	1	2
					4	10	5	2
4				3					5
		5				3
						5	6
1		8			7	2			10

Difficulty: Very easy (0)

		1
		3		10	2	1
3		10				4
								10	2
			8	2			9	1
	1	9			7	2
10	8
			7				3		4
			6	9	8		5
							10

Difficulty: Very easy (0)