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