8
21
10
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17
12
8
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8
16
13
14
21
9
20
8
16
21
21
21
16
21
21
19
13
20
12
21
21
21
15
21
16
16
21
21
21
21
21
21
21
21
21
21
15
17
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21
21
21
20
17
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21
21
21
18
21
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21
21
21
21
21
21
20
21
21
21
21
21
21
17
21
21
21
21
21
21
21
21
12
21
21
21
12
21
15
21
21
12
16
21
16
21
16
12
12
21