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