9
8
8
15
21
21
11
21
21
21
15
15
21
21
21
21
16
18
21
21
21
16
21
16
20
21
21
21
21
21
21
21
21
17
15
15
21
15
15
21
20
15
15
21
21
21
15
13
9
21
21
15
21
21
20
15
21
15
21
21
21
16
21
21
20
21
21
20
15
17
21
11
21
15
21
17
19
14
20
21
16
21
15
21
16
15
17
20
21
20
21
21
21
11
21
21
21
12
20
16