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