18
10
11
20
21
10
8
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15
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15
8
13
11
12
17
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10
20
13
18
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14
15
15
13
18
8
18
21
17
21
10
8
21
21
21
21
21
21
16
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21
16
16
16
20
21
21
20
21
21
18
21
21
21
21
21
21
21
21
16
21
21
21
21
21
21
21
21
16
19
21
20
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16
21
21
21
21
21
20
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21
16
20
19
16
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16
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21
18
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21
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21
21
21