16
21
21
21
20
21
21
20
21
16
21
21
21
21
20
20
10
17
16
21
21
21
21
21
15
16
21
21
21
20
21
21
21
17
21
21
21
17
21
21
20
21
21
20
15
20
20
21
21
21
20
21
21
16
20
16
21
16
21
21
20
21
21
21
16
21
21
21
21
21
21
21
21
21
15
15
16
21
21
16
16
21
21
21
15
20
21
20
20
16
21
12
21
21
21
21
16
16
21
21
20
21
21
21
21
21
15
15
21
21
12
20
12
15
21
15
21
21
21
21
21
21
21
21
21
21
21
20
20
12
21
20
21
21
20
21
21
21
21
21
21
21
21
21
20
21
21
21
21
21
20
12
21
21
16
17
20
21
20
20
20
21
21
19
15
21
21
21
20
21
21
20
21
21
21
21
17
21
21
21
20
21
21
21
21
21
21
21
21
16
16
21
16
21
21
21
15
21
21