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