21
18
21
21
16
17
21
21
20
16
21
21
19
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
12
21
17
17
21
21
21
21
21
20
17
21
21
21
20
20
21
17
21
21
20
15
17
21
17
13
14
21
20
21
20
21
16
14
9
21
20
20
9
14
21
19
8
17
21
16
20
8
20
15
8
21
20
16
19
19
21
21
20
21
21
10
16
13
8
8
21
17
21
13