id parentId position -------------------- id parentId position -------

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|id: 5
|parentId: 0
|position: 2
|--------------------
|id: 8
|parentId: 0
|position: 7
|--------------------
|id: 10
|parentId: 0
|position: 7
|--------------------
|id: 11
|parentId: 0
|position: 8
|--------------------
|id: 12
|parentId: 11
|position: 9
|--------------------
|id: 1
|parentId: 12
|position: 1
|--------------------
|id: 6
|parentId: 1
|position: 4
|--------------------
|id: 9
|parentId: 6
|position: 6
|--------------------
|id: 7
|parentId: 1
|position: 5
|--------------------
|id: 15
|parentId: 11
|position: 12
|--------------------
|id: 13
|parentId: 0
|position: 10
|--------------------
|id: 14
|parentId: 0
|position: 11
|--------------------
|id: 16
|parentId: 0
|position: 13
|--------------------
|id: 17
|parentId: 0
|position: 14
|--------------------
|id: 18
|parentId: 0
|position: 15
|--------------------
|id: 19
|parentId: 0
|position: 16
|--------------------
|id: 20
|parentId: 0
|position: 17
|--------------------
|id: 21
|parentId: 0
|position: 18
|--------------------
|id: 22
|parentId: 0
|position: 19
|--------------------