21
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16
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17
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16
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11
21
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12
16
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21
21
21
21
16
21
21
21
21
21
21
21
15
21
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21
21
15
21
21
21
17
20
16
20
21
21
21
16
19
20
16
21
18
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16
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21
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21
21
20
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16
21
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16
15
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15
21
21
16
21
17
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17
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21
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9
18
21
21
18
21
20
16