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