15
9
13
8
15
14
14
21
10
16
9
14
8
13
18
20
12
21
18
21
21
21
21
21
21
21
21
15
18
21
18
16
15
21
21
21
21
21
15
21
20
21
21
21
21
21
21
21
16
21
13
21
16
21
21
20
21
21
15
16
21
20
15
16
12
21
21
16
21
21
21
21
21
21
18
20
21
21
21
21
21
21
21
21
21
21
21
21
21
21
20
21
20
15
16
21
21
21
21
20