11-15 21-17, 15-19 23-16, 12-19 24-15, 10-19
25-21 8-11
17-13 4-8
e
22-18 9-14
26-23 19-26 -> 7-10
27-23 6-10 -> 11-20
27-24 4-8-> 11-25 -> 8-11
e
29-25 11-15
30-25 9-13
e
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