21
21
15
13
15
9
11
13
9
10
18
14
21
11
21
21
8
13
11
8
16
15
21
15
16
21
18
21
21
21
21
21
21
16
15
21
21
20
21
21
15
15
21
21
18
10
21
17
21
21
21
21
21
21
21
17
21
21
21
20
21
21
20
21
21
12
21
21
21
18
21
21
21
21
21
21
21
21
16
21
21
21
21
21
17
21
21
21
21
21
21
21
20
21
19
16
21
21
21
20