0	
1	abc
2	def
3	ghi
4	
5	
6	
7	
8	
9	
	[]
abc	[0]
def	[1,2]
ghi	[]
	[3,4,5]
	[]
	[]
	[]
	[]
	[]
[]		0
[0]	abc	1
[1,2]	def	2
[]	ghi	3
[3,4,5]		4
[]		5
[]		6
[]		7
[]		8
[]		9
1	[]	2		3	0	4
1	[0]	2	abc	3	1	4
1	[1,2]	2	def	3	2	4
1	[]	2	ghi	3	3	4
1	[3,4,5]	2		3	4	4
1	[]	2		3	5	4
1	[]	2		3	6	4
1	[]	2		3	7	4
1	[]	2		3	8	4
1	[]	2		3	9	4