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#6
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![]() r1: 1 7 9 4
r2: 6 9 2 7 r3: 3 8 1 4 r4: 4 1 3 2 r5: 8 3 7 4 r6: 8 5 6 4 r7: 3 2 1 5 r8: 1 11 13 5 r9: 5 9 1 6 r10: 3 12 7 9 r11: 8 2 3 5 r12: 9 5 4 7 r13: 8 2 6 5 |