15
17
21
15
21
20
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10
16
17
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16
21
21
21
13
12
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21
16
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12
20
21
16
21
15
21
9
21
21
19
16
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20
21
21
16
19
18
21
21
21
21
17
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21
21
21
16
21
21
21
13
20
16
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21
21
21
21
16
21
21
16
17
12
21
12
21
21
21
21
18
15
21
21
21
21
16
21
21
21
21
16
17
18
11
20
21
18
21
15
12
21
15
16
21
16
21