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#5
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r1: 1 7 2 3
r2: 9 1 4 2 r3: 4 3 1 5 r4: 4 2 3 6 r5: 10 7 5 2 r6: 2 12 10 3 r7: 10 3 9 8 r8: 8 6 2 13 r9: 3 12 4 6 |