21
20
15
20
21
21
21
21
20
21
20
21
20
21
19
12
21
21
21
21
17
21
21
20
21
17
21
21
17
15
21
15
21
21
21
21
21
21
21
21
15
21
21
21
13
20
14
21
21
15
17
20
12
10
20
21
20
21
12
21
20
20
21
21
21
21
19
21
20
20
21
21
21
21
21
21
21
21
21
21
21
11
13
21
21
21
21
21
19
21
21
21
17
21
21
21
21
21
21
21