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