before,slide,after
5,6,7
6,7,8
7,8,9
8,9,10
9,10,11
10,11,12
11,12,13
12,13,14
13,14,15
14,15,16
15,16,17
16,17,18
17,18,19
18,19,20
19,20,21
20,21,22
21,22,23
22,23,24
23,24,25
24,25,26
25,26,27
26,27,28
27,28,29
28,29,30
29,30,31
30,31,32
31,32,33
32,33,34
33,34,35
34,35,36
35,36,37
36,37,38
37,38,39
38,39,40
39,40,41
40,41,42
41,42,43
42,43,44
43,44,45
44,45,46
45,46,47
46,47,48
47,48,49
48,49,50
49,50,51
50,51,52
51,52,53
52,53,54
53,54,55