3
2
1
1
4
2
1
1
5
2
1
1
7
2
1
1
9
2
1
1
11
2
1
1
12
2
1
1
13
2
1
1
15
2
1
1
16
2
1
1
17
2
1
1
21
15
14
14
22
2
1
1
23
2
1
1
