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