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