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