1
12
2
7
3
5
3
5
3
5
3
5
7
4
7
4
7
4
10
3
10
3
10
3
13
2
13
2
13
2
13
2
13
2
13
2
13
2
13
2
21
1
21
1
21
1
21
1
21
1
21
1
21
1
21
1
21
1
21
1
21
1
21
1
21
1
21
1
21
1
21
1
21
1
21
1