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