21
21
21
15
11
21
20
21
21
21
16
17
16
21
21
21
21
20
21
20
20
21
21
17
17
21
17
21
21
15
15
21
21
21
21
15
16
21
15
15
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12
12
15
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21
15
21
15
15
12
21
21
21
15
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12
21
12
12
16
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21
20
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15
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21
10
20
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15
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20
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16
21
21