3
2
1
1
4
2
1
1
5
2
1
1
6
2
1
1
7
4
3
3
9
2
1
1
12
2
1
1
13
1
0
0
14
2
1
1
15
2
1
1
18
2
1
1
19
2
1
1
20
2
1
1
21
2
1
1
22
2
1
1
23
2
1
1
24
2
1
1
