11-15 24-20, 15-18 23-14, 9-18 22-15, 10-19
20-16 8-11
21-17 11-20
17-13 5-9
25-21 5-9
25-22 5-9
26-22 5-9
27-23 6-10 -> 12-19
27-24 20-27
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