21
15
18
21
16
19
21
20
20
21
16
21
21
21
16
21
21
15
21
16
16
21
20
21
21
21
21
21
16
21
18
21
21
21
15
15
21
16
20
20
21
15
17
21
21
15
21
21
16
19
21
15
21
21
10
20
14
21
17
20
21
18
21
21
21
21
16
21
21
21
21
13
19
16
21
21
21
21
15
21
21
20
21
21
19
14
21
15
20
21
21
12
21
21
16
12
21
16
21
21