21
14
21
21
21
21
21
21
21
21
21
21
21
15
21
21
21
12
15
21
16
13
21
12
21
16
11
21
21
21
14
20
21
12
12
20
21
15
15
21
20
16
20
21
16
15
16
15
21
16
21
21
16
16
12
21
21
21
15
18
16
16
21
15
21
21
21
19
12
21
20
21
15
20
21
21
15
20
21
15
16
15
15
12
15
15
21
15
21
15
15
15
16
15
21
21
21
16