16
17
12
21
21
16
20
20
16
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21
9
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19
19
12
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12
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21
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21
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21
16
21
21
21
17
21
21
21
21
21
21
21
16
21
21
21
21
21
21
15
15
20
21
21
21
21
21
15
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16
21
21
21
21
21
21
21
21
16
12
21
16
11
16
20
21
21
17
17
16
20
15
16
21
21
20
20
21
15
16
21
15
20
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16
21
21
21
21
21
21
21