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