12
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
20
19
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
20
21
21
21
21
20
21
15
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
21
20
21
21
18
21
21
16
21
21
21
20
21
21
18
21
15
16
16
16
21
21
21
21
17
21
21
21
21
21
20
21
20
20
21
20