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

Difficulty: Easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Easy (0)

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

Difficulty: Easy (0)