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