15
8
10
18
17
15
21
21
17
11
10
20
17
21
18
20
9
8
18
9
17
9
8
11
10
15
21
21
20
21
17
15
21
21
21
21
21
21
17
21
17
21
21
21
21
21
21
21
21
21
21
20
20
21
21
20
21
21
21
21
21
21
21
19
21
21
20
21
21
21
20
21
20
21
20
21
21
14
15
15
16
20
21
21
21
20
21
16
21
21
20
21
21
20
21
21
21
20
21
21