0
2
0
4
0
6
0
7
0
9
0
10
0
13
0
14
0
16
0
17
0
18
0
20
0
21
0
22
0
24
0
25
0
26
0
27
0
29
0
31
0
32
0
35
0
37
0
38
0
39
0
40
0
42
0
44
0
46
0
48
0
49
0
51
0
52
0
53
0
55
0
57
0
58
0
62
0
67
0
70
0
74
0
75
0
78
0
80
0
83
0
84