NrABCDE
0                         
1                         
2                         
3                         
4                         
5                         
6                         
7                         
8                         
9                         
10                         
11                         
12                         
13                         
14                         
NrABCDE
15                         
16                         
17                         
18                         
19                         
20                         
21                         
22                         
23                         
24                         
25                         
26                         
27                         
28                         
29                         
NrABCDE
30                         
31                         
32                         
33                         
34                         
35                         
36                         
37                         
38                         
39                         
40                         
41                         
42                         
43                         
44                         
NrABCDE
45                         
46                         
47                         
48                         
49                         
50                         
51                         
52                         
53                         
54                         
55                         
56                         
57                         
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59