19
21
21
21
16
21
15
15
15
12
17
16
17
16
21
16
16
21
21
16
16
16
20
16
21
16
12
20
21
21
21
16
21
21
21
21
21
12
12
21
21
21
21
21
17
21
21
21
21
21
21
14
21
21
16
21
21
21
21
21
17
12
16
21
16
12
12
15
16
16
21
21
16
21
17
16
21
16
21
21
14
21
17
21
21
21
21
15
21
17
21
21
21
21
18
17
21
21
21
11