10
8
13
8
19
11
9
13
15
21
19
13
12
15
8
17
12
8
15
9
13
21
18
21
21
21
16
21
21
17
21
21
21
21
21
21
21
21
21
21
21
12
21
21
21
17
21
21
21
21
21
21
21
21
21
21
21
21
21
20
19
21
21
21
21
21
21
21
21
21
21
16
21
21
21
21
21
21
14
21
21
21
17
21
21
20
21
21
21
21
20
16
21
15
21
21
21
21
21
21