19
21
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18
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15
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21
20
20
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20
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19
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21
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19
21
15
21
20
21
21
21
21
16
16
17
16
20
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15
21
21
21
20
20
16
21
21
21
16
16
21
21
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21
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16
21
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16
16
21
21
20
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16
21
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21
21
21
20
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8
21
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16
21
15
16
15
13
19
10
11
17
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12
19
21
21
20
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16