1			1		3		3		3			3
				1		2		3			2
3			5		3		3			1		3
	1			3		5			4		3
1								1				3
	2		6		1				6		4
				2		5		3				3
3			3		2		3		8		4
						2		1
	2			3								3
2		1				4			8		3
	1				1
2		3		2		2			4			2

Difficulty: Easy