17
15
21
17
16
21
21
21
21
21
21
21
21
21
21
21
20
21
21
20
21
21
17
21
16
20
16
12
21
21
17
21
21
16
15
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21
21
12
21
15
15
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21
21
15
21
18
20
21
21
21
21
19
16
21
17
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15
13
12
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16
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16
20
15
13
16
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15
16
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21
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15
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12
17
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16
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15
16
18
16
17
21
21
21
21
17
21
16
10
21
19
21
11