Number of Ribs

0
1
10
100
11
12
13
14
15
150
16
17
18
19
2
20
200
21
22
23
24
25
26
27
28
29
3
30
300
31
32
33
34
35
36
37
38
39
4
40
41
42
43
44
45
46
47
48
49
5
50
51
52
53
54
55
56
57
58
59
6
60
7
75
8
85
9
99