16
16
16
20
12
15
21
12
21
21
21
15
21
16
21
21
21
21
21
21
16
21
13
21
21
15
16
18
17
13
21
12
16
21
14
21
21
12
17
21
21
21
15
21
21
15
16
21
16
21
16
20
21
12
16
21
12
21
21
16
17
17
15
16
21
12
21
16
9
18
16
21
21
21
21
21
21
17
21
15
18
21
21
21
21
16
15
15
21
21
12
16
21
16
16
16
21
21
16