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