16
21
21
21
16
16
21
21
21
21
21
16
21
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21
21
21
21
17
20
21
21
21
21
16
21
16
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21
21
16
17
16
21
21
21
12
21
21
12
21
12
16
16
21
12
21
21
21
21
15
21
20
21
16
21
16
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15
18
14
21
14
21
15
21
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16
21
20
21
16
21
21
21
18
16
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12
11
17
12
19
18
8
15
17
20
17
19
20
15
14
21
21
21
21
13
19
20